{"id":5014,"date":"2020-02-11T03:47:53","date_gmt":"2020-02-11T03:47:53","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=5014"},"modified":"2024-07-10T13:04:07","modified_gmt":"2024-07-10T13:04:07","slug":"cederj-2020","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/universidades-2020\/cederj-2020\/","title":{"rendered":"CEDERJ 2020"},"content":{"rendered":"<p align=\"CENTER\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>CEDERJ \u2013 RJ \u2013 2020<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #0000cc;\"><span style=\"font-family: Viner Hand ITC, serif;\"><span style=\"font-size: large;\"><b>Compare essa e outras resolu\u00e7\u00f5es da CEDERJ RJ pelo\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #ff0000;\"><span style=\"font-family: Viner Hand ITC, serif;\"><span style=\"font-size: large;\"><b>fisicaevestibular.com.br\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Viner Hand ITC, serif;\"><span style=\"font-size: large;\"><b>com outras e voc\u00ea ver\u00e1 que ela:<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #0000cc;\"><span style=\"font-family: Viner Hand ITC, serif;\"><span style=\"font-size: large;\"><b>Tem melhor visual e mais ilustra\u00e7\u00f5es esclarecedoras.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #0000cc;\"><span style=\"font-family: Viner Hand ITC, serif;\"><span style=\"font-size: large;\"><b>Foi feito para alunos que realmente tenham dificuldades nos conceitos de F\u00edsica e Matem\u00e1tica procurando sempre explicar os menores detalhes.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #0000cc;\"><span style=\"font-family: Viner Hand ITC, serif;\"><span style=\"font-size: large;\"><b>N\u00e3o coloca apenas as f\u00f3rmulas procurando sempre mostrar suas proced\u00eancias e utilidades.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #0000cc;\"><span style=\"font-family: Viner Hand ITC, serif;\"><span style=\"font-size: large;\"><b>Sempre que preciso procura explicar por meio de desenhos e ilustra\u00e7\u00f5es.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #0000cc;\"><span style=\"font-family: Viner Hand ITC, serif;\"><span style=\"font-size: large;\"><b>N\u00e3o queima etapas explicando sequ\u00eancia por sequ\u00eancia.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #0000cc;\"><span style=\"font-family: Viner Hand ITC, serif;\"><span style=\"font-size: large;\"><b>A preocupa\u00e7\u00e3o com que o aluno entenda as resolu\u00e7\u00f5es \u00e9 muito grande. O professor se coloca no lugar do aluno.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #0000cc;\"><span style=\"font-family: Viner Hand ITC, serif;\"><span style=\"font-size: large;\"><b>Muitas vezes fornece informa\u00e7\u00f5es al\u00e9m das necess\u00e1rias para as resolu\u00e7\u00f5es, mas \u00fateis nos pr\u00f3ximos Vestibulares.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_4cc6178f.png\" width=\"27\" height=\"14\" name=\"Imagem 45\" align=\"BOTTOM\" border=\"0\" \/><span style=\"color: #0000cc;\">\u00a0<span style=\"font-family: Viner Hand ITC, serif;\"><span style=\"font-size: large;\"><b>E muito, muito mais.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img fetchpriority=\"high\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_515370c7.png\" width=\"447\" height=\"130\" name=\"Imagem 2\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p align=\"CENTER\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Viner Hand ITC, serif;\"><span style=\"font-size: large;\"><b>(<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Viner Hand ITC, serif;\"><span style=\"font-size: x-large;\"><b>CEDERJ-RJ)\u00a0\u2013\u00a0Centro de Ci\u00eancias e Educa\u00e7\u00e3o Superior a Dist\u00e2ncia do Estado do Rio de Janeiro<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Viner Hand ITC, serif;\"><span style=\"font-size: x-large;\"><b>Objetivo:<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Viner Hand ITC, serif;\"><span style=\"font-size: x-large;\"><b>Contribuir para a interioriza\u00e7\u00e3o do ensino superior p\u00fablico, gratuito e de qualidade no Estado do Rio de Janeiro por meio da oferta de cursos de gradua\u00e7\u00e3o a dist\u00e2ncia, na modalidade semipresencial, garantindo a qualidade destes no que diz respeito ao processo de avalia\u00e7\u00e3o de aprendizagem.<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_ac0832ec.jpg\" width=\"599\" height=\"210\" name=\"Imagem 42\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_a31e7f87.png\" width=\"769\" height=\"177\" name=\"Imagem 43\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>01 \u2013 (CEDERJ-RJ-2020)<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_fd76c5a1.jpg\" width=\"255\" height=\"145\" name=\"Imagem 44\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Um <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>objeto \u00e9 posicionado muito longe do centro \u00f3ptico de uma lente delgada divergente.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Quanto \u00e0 natureza e a posi\u00e7\u00e3o, a imagem do objeto caracteriza-se por ser <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(A) <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>virtual e pr\u00f3xima ao foco situado entre o objeto e a lente. <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(B) <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>virtual e pr\u00f3xima ao foco situado ap\u00f3s o objeto e a lente. <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(C) <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>real e pr\u00f3xima ao foco situado entre o objeto e a lente. <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(D) <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>real e pr\u00f3xima ao foco situado ap\u00f3s o objeto e a lente. <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>02 \u2013 (CEDERJ-RJ-2020)<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_fd76c5a1.jpg\" width=\"255\" height=\"145\" name=\"Imagem 46\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p align=\"JUSTIFY\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_ea3c81a1.png\" width=\"783\" height=\"163\" name=\"Imagem 15\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>03 \u2013 (CEDERJ-RJ-2020)<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_fd76c5a1.jpg\" width=\"255\" height=\"145\" name=\"Imagem 47\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>Na constru\u00e7\u00e3o de ferrovias, \u00e9 necess\u00e1rio deixar uma folga entre os trilhos para permitir que eles se dilatem caso a temperatura aumente.<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b> Suponha que <\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>cada trilho tem 20 m de comprimento na temperatura m\u00e9dia da regi\u00e3o onde ser\u00e3o <\/b><\/span><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_19f7063c.png\" width=\"303\" height=\"172\" name=\"Imagem 18\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_1b2dac1b.png\" width=\"771\" height=\"103\" name=\"Imagem 22\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>04 \u2013 (CEDERJ-RJ-2020)<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_fd76c5a1.jpg\" width=\"255\" height=\"145\" name=\"Imagem 48\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Um violonista dedilha uma corda do seu viol\u00e3o deixando-a livre, sem apert\u00e1-la com o seu dedo no traste. <\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_81c71ef5.png\" width=\"215\" height=\"169\" name=\"Imagem 25\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Denote-se <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>por v a velocidade de propaga\u00e7\u00e3o da onda na corda, por \u03bb o comprimento de onda e por f a frequ\u00eancia do som emitido.<\/b><\/span><\/span><\/span><b> <\/b><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Comparando-se o que acontece com v, \u03bb e f quando o violonista dedilhar a mesma corda, apertando-a, com seu dedo, no sexto traste tem-se: <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(A) <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>v permanece constante, \u03bb diminui e f aumenta <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(B) <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>v aumenta, \u03bb aumenta e f permanece constante <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(C) <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>v aumenta, \u03bb permanece constante e f aumenta <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(D) <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>v diminui, \u03bb diminui e f permanece constante <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>05 \u2013 (CEDERJ-RJ-2020)<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_fd76c5a1.jpg\" width=\"255\" height=\"145\" name=\"Imagem 49\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Sobre uma mesa parada se encontra um livro e sobre esse repousa um caderno.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_7db033b8.png\" width=\"295\" height=\"116\" name=\"Imagem 27\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_8d027b36.png\" width=\"404\" height=\"158\" name=\"Imagem 28\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>06 \u2013 (CEDERJ-RJ-2020)<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_fd76c5a1.jpg\" width=\"255\" height=\"145\" name=\"Imagem 50\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Uma bateria ideal se encontra ligada em s\u00e9rie a um resistor \u00f4hmico. <\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_f6634b4.png\" width=\"309\" height=\"148\" name=\"Imagem 11\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Nessa situa\u00e7\u00e3o, a corrente no resistor \u00e9 20 mA e a ddp vale 12 V. <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Um segundo resistor, id\u00eantico ao primeiro, \u00e9 ligado em paralelo ao primeiro e, nessa nova situa\u00e7\u00e3o, a corrente em cada resistor e a ddp entre os extremos de cada um deles passam a ser respectivamente (A) <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>20 mA e 6 V <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(B) <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>10 mA e 6 V <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(C) <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>10 mA e 12 V <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(D) <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>20 mA e 12 V <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>07 \u2013 (CEDERJ-RJ-2020)<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_fd76c5a1.jpg\" width=\"255\" height=\"145\" name=\"Imagem 51\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Uma <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>pessoa segura um pequeno corpo de massa m que est\u00e1 preso a um ponto fixo por um fio flex\u00edvel de comprimento R. <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>O <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>fio est\u00e1, inicialmente, estendido horizontalmente<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>. <\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_e077a276.png\" width=\"250\" height=\"194\" name=\"Imagem 32\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Ap\u00f3s ser solto pela pessoa, o corpo faz um movimento circular de raio R em torno do ponto fixo. Considere o movimento desde a situa\u00e7\u00e3o inicial descrita at\u00e9 a situa\u00e7\u00e3o em que o corpo passa pelo ponto mais baixo da trajet\u00f3ria, ou seja, quando o fio est\u00e1 estendido na dire\u00e7\u00e3o vertical. <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Nesse processo, o trabalho realizado pela for\u00e7a peso sobre o corpo vale <\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_f0338f37.png\" width=\"511\" height=\"27\" name=\"Imagem 31\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>08 \u2013 (CEDERJ-RJ-2020)<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_fd76c5a1.jpg\" width=\"255\" height=\"145\" name=\"Imagem 52\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Considere um tubo vertical fechado na extremidade inferior que aprisiona um g\u00e1s ideal em seu interior por meio de um leve \u00eambolo situado na extremidade oposta.<\/b><\/span><\/span><\/span><b> <\/b><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Lentamente, o \u00eambolo \u00e9 pressionado at\u00e9 que o volume do g\u00e1s se reduz \u00e0 metade. <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Considere duas formas de fazer isso. <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>No processo I, o tubo \u00e9 mantido em contato t\u00e9rmico com um grande recipiente com \u00e1gua.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_6d3ad427.png\" width=\"432\" height=\"206\" name=\"Imagem 53\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>No processo II, o tubo \u00e9 isolado termicamente do ambiente. <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>As descri\u00e7\u00f5es dos processos I e II e a avalia\u00e7\u00e3o das varia\u00e7\u00f5es de energia interna correspondem <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>a: <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(A) <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Processo I: compress\u00e3o isot\u00e9rmica; Processo II: compress\u00e3o adiab\u00e1tica; A energia interna do g\u00e1s aumenta nos dois processos. <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(B) <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Processo I: compress\u00e3o adiab\u00e1tica; Processo II: compress\u00e3o isot\u00e9rmica; A energia interna do g\u00e1s aumenta nos dois processos. <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(C) <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Processo I: compress\u00e3o isot\u00e9rmica; Processo II: compress\u00e3o adiab\u00e1tica; A energia interna do g\u00e1s aumenta somente no segundo processo. <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(D) <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Processo I: compress\u00e3o adiab\u00e1tica; Processo II: compress\u00e3o isot\u00e9rmica; A energia t\u00e9rmica do g\u00e1s aumenta somente no segundo processo.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\">Resolu\u00e7\u00e3o comentada das quest\u00f5es de F\u00edsica da CEDERJ \u2013 RJ \u2013 2020<\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\">01-<\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>Lente divergente<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>Neste caso,\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>independente\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>da\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>posi\u00e7\u00e3o do objeto O,<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>\u00a0a\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>imagem i<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>\u00a0ter\u00e1\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>sempre\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>as seguintes caracter\u00edsticas:<\/b><\/span><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_5451ad95.png\" width=\"774\" height=\"280\" name=\"Imagem 54\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_25b15a3e.png\" width=\"774\" height=\"313\" name=\"Imagem 55\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>Natureza\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_547fd84f.png\" width=\"25\" height=\"11\" name=\"Imagem 56\" align=\"BOTTOM\" border=\"0\" \/><\/b><\/span><\/span><span style=\"color: #111111;\"><span style=\"font-family: Arial, serif;\"><b>\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>virtual (obtida pelo prolongamento do raio refratado).<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>Localiza\u00e7\u00e3o\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_547fd84f.png\" width=\"25\" height=\"11\" name=\"Imagem 57\" align=\"BOTTOM\" border=\"0\" \/><\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>\u00a0entre O e f<\/b><\/span><\/span><span style=\"color: #0000cc;\"><sub><span style=\"font-family: Arial, serif;\"><b>i<\/b><\/span><\/sub><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>Tamanho e orienta\u00e7\u00e3o<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_547fd84f.png\" width=\"25\" height=\"11\" name=\"Imagem 58\" align=\"BOTTOM\" border=\"0\" \/><\/b><\/span><\/span><span style=\"color: #111111;\"><span style=\"font-family: Arial, serif;\"><b>\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>menor\u00a0que o objeto e\u00a0direita\u00a0em rela\u00e7\u00e3o a ele.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>Utilidades<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_1f7b36aa.png\" width=\"774\" height=\"108\" name=\"Imagem 59\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>R- A<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\">02-<\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_ffbfcfa7.png\" width=\"622\" height=\"23\" name=\"Imagem 60\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_d8132f53.png\" width=\"590\" height=\"220\" name=\"Imagem 61\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_2a11ab4d.png\" width=\"706\" height=\"70\" name=\"Imagem 62\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>R- C<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>03-<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>Dilata\u00e7\u00e3o linear dos s\u00f3lidos<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_a9518084.png\" width=\"771\" height=\"333\" name=\"Imagem 63\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_9c3028ab.png\" width=\"647\" height=\"47\" name=\"Imagem 64\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\">R- B<\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>04-<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_71dc0642.png\" width=\"711\" height=\"169\" name=\"Imagem 65\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_d85e1ee0.png\" width=\"745\" height=\"129\" name=\"Imagem 66\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Observe na f\u00f3rmula de Taylor que a velocidade de propaga\u00e7\u00e3o da onda na corda n\u00e3o depende do comprimento da corda, dependendo apenas de T e de <img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_c7fa5617.gif\" align=\"ABSMIDDLE\" hspace=\"8\" \/><\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, portanto a velocidade V \u00e9 sempre a mesma.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Quando o violonista diminui o comprimento da corda, ele est\u00e1 diminuindo o comprimento de onda \u03bb.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Veja pela equa\u00e7\u00e3o fundamental da ondulat\u00f3ria V = \u03bb.f <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>que, <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>como V \u00e9 constante \u03bb \u00e9 inversamente proporcional \u00e0 frequ\u00eancia f<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> e, <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>como \u03bb diminui f deve aumentar.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>R- A<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>05-<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: medium;\"><b>Veja figura abaixo:<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_2e40f6d5.png\" width=\"319\" height=\"248\" name=\"Imagem 67\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_44dd2099.png\" width=\"722\" height=\"46\" name=\"Imagem 68\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>R- D<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>06-<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_38dfd0c4.png\" width=\"780\" height=\"63\" name=\"Imagem 69\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>A <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>figura abaixo representa a nova situa\u00e7\u00e3o <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>quando um <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>segundo resistor, id\u00eantico ao primeiro de R = 600 \u2126, \u00e9 ligado em paralelo ao primeiro:<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_6f2ffd5.png\" width=\"349\" height=\"172\" name=\"Imagem 70\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Como <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>est\u00e3o associados em paralelo da ddp U = 12 V \u00e9 a mesma para os dois resistores <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(caracter\u00edstica da associa\u00e7\u00e3o paralelo).<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_b05abf54.png\" width=\"393\" height=\"39\" name=\"Imagem 71\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>R- D <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>07-<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>Trabalho da For\u00e7a Peso<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Um corpo de\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>peso\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_1d9aeb97.png\" width=\"14\" height=\"16\" name=\"Imagem 72\" align=\"BOTTOM\" border=\"0\" \/>\u00a0e massa m\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>efetua um\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>deslocamento\u00a0vertical d = h<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, entre dois pontos\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>A e B.<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0Vamos calcular\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>o trabalho da for\u00e7a peso nesse deslocamento <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>quando:<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>a)<\/b><\/span><\/span><\/span><span style=\"color: #111111;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>O\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>corpo se desloca de A para B,<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0ou seja,\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>est\u00e1 descendo e \u03b1 = 0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><sup><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>o<\/b><\/span><\/span><\/sup><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>:<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_6ac18f13.png\" width=\"607\" height=\"310\" name=\"Imagem 73\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>b)<\/b><\/span><\/span><\/span><span style=\"color: #111111;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>O\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>corpo se desloca de B para A<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, ou seja,\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>est\u00e1 subindo com \u03b1 = 180<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><sup><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>o<\/b><\/span><\/span><\/sup><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_4f520789.png\" width=\"618\" height=\"331\" name=\"Imagem 74\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>O\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: medium;\"><b>trabalho da for\u00e7a peso<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: medium;\"><b>\u00a0\u00e9\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: medium;\"><b>positivo na descida,<\/b><\/span><\/span><\/span><span style=\"color: #111111;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>negativo na subida,\u00a0nulo num deslocamento horizontal e <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: medium;\"><b>independe da trajet\u00f3ria dependendo apenas das posi\u00e7\u00f5es inicial e final.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>R- B<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>08-<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>No processo I sendo grande a quantidade de \u00e1gua a temperatura do g\u00e1s \u00e9 a mesma que a da \u00e1gua (constante) e est\u00e1 sendo comprimido <img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_ced6d919.png\" width=\"30\" height=\"12\" name=\"Imagem 75\" align=\"BOTTOM\" border=\"0\" \/><\/b><\/span><\/span><\/span><b> <\/b><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>trata-se de uma compress\u00e3o isot\u00e9rmica <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(a temperatura constante).<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>No processo II como ele \u00e9 isolado termicamente ele n\u00e3o troca calor com o ambiente <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(transforma\u00e7\u00e3o adiab\u00e1tica) e <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>est\u00e1 sendo comprimido <img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_ced6d919.png\" width=\"30\" height=\"12\" name=\"Imagem 76\" align=\"BOTTOM\" border=\"0\" \/><\/b><\/span><\/span><\/span><b> <\/b><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>trata-se de uma compress\u00e3o adiab\u00e1tica.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>A <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>energia interna do g\u00e1s est\u00e1 relacionada com a varia\u00e7\u00e3o da temperatura do mesmo e no primeiro processo, como a temperatura \u00e9 constante a energia interna do g\u00e1s permanece constante.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>No <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>segundo processo (transforma\u00e7\u00e3o adiab\u00e1tica) a teoria est\u00e1 a seguir:<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: medium;\"><b>Transforma\u00e7\u00e3o adiab\u00e1tica<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\">\u00a0<span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Nela, o\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>sistema n\u00e3o troca calor com o meio externo (Q = 0) e isso ocorre porque o g\u00e1s est\u00e1 termicamente isolado ou porque a transforma\u00e7\u00e3o \u00e9 muito r\u00e1pida de modo que qualquer troca de calor com possa ser considerada.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\">\u00a0<span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Se Q = 0\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_3d8ba4ee.png\" width=\"16\" height=\"14\" name=\"Imagem 77\" align=\"BOTTOM\" border=\"0\" \/><\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u0394U = Q \u2013 W\u00a0\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_3d8ba4ee.png\" width=\"16\" height=\"14\" name=\"Imagem 78\" align=\"BOTTOM\" border=\"0\" \/><\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0 \u0394U = 0 \u2013 W\u00a0\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_3d8ba4ee.png\" width=\"16\" height=\"14\" name=\"Imagem 79\" align=\"BOTTOM\" border=\"0\" \/>\u00a0\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u0394U = \u2013 W.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2020\/CEDERJ_001\/CEDERJ_html_2c1cc7d9.png\" alt=\"CEDERJ\" width=\"570\" height=\"85\" name=\"Imagem 80\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Ent\u00e3o, todo o trabalho realizado pelo pist\u00e3o \u00e9 transformado em energia interna. <\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>R- C<\/b><\/span><\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/fisicaevestibular.com.br\/novo\/universidades-2020\/\">Clique aqui para ver sobre o tema!<\/a><\/p>\n<p><a href=\"https:\/\/www.youtube.com\/user\/fisicaevestibular\/playlists\">Confira as v\u00eddeo aulas!<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>CEDERJ \u2013 RJ \u2013 2020 Compare essa e outras resolu\u00e7\u00f5es da CEDERJ RJ pelo\u00a0fisicaevestibular.com.br\u00a0com outras e voc\u00ea ver\u00e1 que ela: Tem melhor visual e mais ilustra\u00e7\u00f5es esclarecedoras. Foi feito para alunos que realmente tenham dificuldades nos conceitos de F\u00edsica e Matem\u00e1tica procurando sempre explicar os menores detalhes. N\u00e3o coloca apenas as f\u00f3rmulas procurando sempre mostrar suas proced\u00eancias e utilidades. Sempre<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":4938,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-5014","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/5014","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/comments?post=5014"}],"version-history":[{"count":3,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/5014\/revisions"}],"predecessor-version":[{"id":10146,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/5014\/revisions\/10146"}],"up":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4938"}],"wp:attachment":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/media?parent=5014"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}