{"id":586,"date":"2015-03-18T18:02:53","date_gmt":"2015-03-18T18:02:53","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=586"},"modified":"2024-09-02T17:33:05","modified_gmt":"2024-09-02T17:33:05","slug":"exercicios-resolvidos-da-puc-mg-2015","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/universidades-2015\/exercicios-resolvidos-da-puc-mg-2015\/","title":{"rendered":"Exerc\u00edcios Resolvidos da PUC-MG 2015"},"content":{"rendered":"<p align=\"CENTER\"><img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_m7294525a.png\" alt=\"\" width=\"102\" height=\"109\" name=\"Imagem 34\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p align=\"CENTER\"><span style=\"color: #0000cc;\"><span style=\"font-family: 'Viner Hand ITC', serif;\"><span style=\"font-size: large;\"><b>A\u00a0Pontif\u00edcia Universidade Cat\u00f3lica de Minas Gerais\u00a0(PUC Minas) \u00e9 uma institui\u00e7\u00e3o de ensino superior, privada e cat\u00f3lica brasileira situada em Belo Horizonte, capital do estado de Minas Gerais. Fundada em 1958 sob o nome de Universidade Cat\u00f3lica de Minas Gerais, PUC Minas \u00e9 a maior universidade cat\u00f3lica do mundo e uma das mais prestigiosas universidades brasileiras[2, presente tamb\u00e9m no ranking das melhores universidades da Am\u00e9rica Latina da QS World University Rankings<\/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>Em 2011,\u00a0a Pont\u00edficia Universidade Cat\u00f3lica de Minas Gerais e a\u00a0Universidade de S\u00e3o Paulo\u00a0foram as grandes vencedoras da 7\u00aa edi\u00e7\u00e3o do\u00a0Pr\u00eamio Melhores Universidades Guia do Estudante. Elas ganharam na categoria mais esperada da noite, de melhor universidade privada e p\u00fablica, respectivamente. Esta foi a terceira vez que a PUC Minas recebeu o pr\u00eamio, a primeira vez foi em 2006.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0033cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\">ARQUITETURA E URBANISMO, CI\u00caNCIAS SOCIAIS, COMUNICA\u00c7\u00c3O SOCIAL \u2013 CINEMA E AUDIOVISUAL, JORNALISMO, PUBLICIDADE E PROPAGANDA, RELA\u00c7\u00d5ES P\u00daBLICAS, DIREITO, FILOSOFIA, GEOGRAFIA, HIST\u00d3RIA, LETRAS, PEDAGOGIA, RELA\u00c7\u00d5ES INTERNACIONAIS, SERVI\u00c7O SOCIAL.<\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\">01-(PUC-MG-015)<\/span><\/span><\/span><\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_m7c6bf49.jpg\" alt=\"\" width=\"591\" height=\"136\" name=\"Imagem 1\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Certa estrela emite luz<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> que percorre a <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>dist\u00e2ncia de um bilh\u00e3o de anos-luz at\u00e9 chegar a<\/b><\/span><\/span><\/span><b><\/b><\/p>\n<p align=\"CENTER\"><img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_m1bef56ad.png\" alt=\"\" width=\"257\" height=\"140\" name=\"graphics1\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Terra <\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>e ser captada por um telesc\u00f3pio. \u00c9 <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>CORRETO a<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>firmar que:<\/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: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> A estrela est\u00e1 a uma dist\u00e2ncia de um bilh\u00e3o de quil\u00f4metros da Terra.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>b)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> Daqui a um bilh\u00e3o de anos, a luz dessa estrela n\u00e3o mais chegar\u00e1 a Terra.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>c)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> A luz recebida hoje aqui na Terra foi emitida h\u00e1 um bilh\u00e3o de anos.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>d)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> Quando a luz foi emitida pela estrela, ela tinha a idade de um bilh\u00e3o de anos.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b><br \/>\n<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\">02-(PUC-MG-015)<\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_36f88af1.jpg\" alt=\"\" width=\"589\" height=\"147\" name=\"Imagem 4\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Ao <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>n\u00edvel do mar,<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> quando se <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>fornece calor \u00e0 \u00e1gua,<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> sua temperatura atinge <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>no m\u00e1ximo o valor de<\/b><\/span><\/span><\/span><b><\/b><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_m78df6701.png\" alt=\"\" width=\"295\" height=\"185\" name=\"Imagem 2\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>100\u00b0C<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>. \u00c9 <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>CORRETO<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> afirmar:<\/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: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> Quando a \u00e1gua atinge a temperatura de 100\u00b0C, o calor recebido pela \u00e1gua \u00e9 exatamente igual ao calor que ela perde para o meio ambiente, impedindo sua temperatura de subir.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>b)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> Ap\u00f3s atingir a temperatura de 100\u00b0C, o calor recebido pela \u00e1gua far\u00e1 com que ela mude de fase, transformando-se em vapor a 100\u00b0C.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>c)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> Ao n\u00edvel do mar \u00e9 poss\u00edvel que a \u00e1gua atinja temperaturas acima de 100\u00b0C, basta que a quantidade de calor recebida por ela seja maior que o calor que ela perde para o meio.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>d)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> A temperatura da \u00e1gua n\u00e3o passa de 100\u00b0C devido ao movimento de convec\u00e7\u00e3o causado pelas diferen\u00e7as de densidade entre a \u00e1gua fria e quente.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\">03-(PUC-MG-015)<\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_m50b04ec9.jpg\" alt=\"\" width=\"642\" height=\"148\" name=\"Imagem 7\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Um <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>chuveiro el\u00e9trico<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> foi projetado para <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>funcionar corretamente quando ligado em 220 V<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>. Se ele <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>for<\/b><\/span><\/span><\/span><b><\/b><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_m2a952ada.png\" alt=\"\" width=\"269\" height=\"131\" name=\"Imagem 3\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>ligado a uma rede el\u00e9trica de 110 V,<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> \u00e9 <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>CORRETO <\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>afirmar que:<\/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: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> a resist\u00eancia do chuveiro ir\u00e1 se reduzir pela metade e sua pot\u00eancia n\u00e3o ser\u00e1 modificada.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>b)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> a resist\u00eancia do chuveiro ir\u00e1 dobrar de valor, j\u00e1 que a voltagem de 110 V \u00e9 a metade da voltagem de 220 V para a qual ele foi projetado.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>c)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> sua resist\u00eancia el\u00e9trica n\u00e3o muda de valor e sua pot\u00eancia ficar\u00e1 quatro vezes menor.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>d)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> sua resist\u00eancia el\u00e9trica ir\u00e1 reduzir pela metade fazendo com ele aque\u00e7a menos a \u00e1gua.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\">04-(PUC-MG-015)<\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_3da3dbfb.jpg\" alt=\"\" width=\"661\" height=\"131\" name=\"Imagem 10\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Ap\u00f3s certo tempo de queda,<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><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>velocidade de um p\u00e1ra-quedista torna-se constante.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_24166905.png\" alt=\"\" width=\"136\" height=\"158\" name=\"graphics2\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Nessas condi\u00e7\u00f5es \u00e9 <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>CORRETO <\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>afirmar:<\/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: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> A acelera\u00e7\u00e3o do p\u00e1ra-quedista \u00e9 igual \u00e0 acelera\u00e7\u00e3o da gravidade.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>b)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> O peso do p\u00e1ra-quedista fica nulo.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>c)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> A acelera\u00e7\u00e3o do p\u00e1ra-quedista \u00e9 nula fazendo com que ele flutue no ar.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>d)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> Ele vai percorrer dist\u00e2ncias iguais no mesmo intervalo do tempo.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\">05-(PUC-MG-015)<\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_7f60f378.jpg\" alt=\"\" width=\"514\" height=\"151\" name=\"Imagem 13\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Dentro da \u00e1gua<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, as pessoas sentem uma <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>sensa\u00e7\u00e3o de estarem mais leves<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> devido \u00e0 <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>for\u00e7a exercida<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_m57971a5f.png\" alt=\"\" width=\"220\" height=\"137\" name=\"Imagem 5\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>pela \u00e1gua sobre o corpo imerso<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>. Esta <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>for\u00e7a descrita por Arquimedes<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> \u00e9 denominada de <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>empuxo.<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> \u00c9 <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>CORRETO<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> afirmar:<\/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: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> O empuxo \u00e9 proporcional ao volume de \u00e1gua deslocado pelo corpo.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>b<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>) A dire\u00e7\u00e3o do empuxo pode ser horizontal.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>c)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> O empuxo \u00e9 sempre menor que o peso do corpo imerso na \u00e1gua.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>d)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> O empuxo \u00e9 igual ao peso do corpo imerso.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\">06-(PUC-MG-015)<\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_m3e21dba1.jpg\" alt=\"\" width=\"591\" height=\"146\" name=\"Imagem 16\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Assinale a afirmativa <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>INCORRETA<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>.<\/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: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> Da mesma forma que as ondas de r\u00e1dio, a luz tamb\u00e9m \u00e9 onda eletromagn\u00e9tica.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>b)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> A luz branca \u00e9 composta por ondas de diversas frequ\u00eancias e comprimentos de onda diferentes.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>c)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> A luz ultravioleta tem uma frequ\u00eancia maior que o infravermelho.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>d)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> Como a velocidade de propaga\u00e7\u00e3o da luz \u00e9 constante, quanto maior sua frequ\u00eancia, maior tamb\u00e9m ser\u00e1 seu comprimento de onda.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #0033cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\">CI\u00caNCIA DA COMPUTA\u00c7\u00c3O, F\u00cdSICA, MATEM\u00c1TICA, SISTEMAS DE INFORMA\u00c7\u00c3O, ENGENHARIAS: CIVIL, DE COMPUTA\u00c7\u00c3O, DE CONTROLE E AUTOMA\u00c7\u00c3O, EL\u00c9TRICA, ELETR\u00d4NICA E DE TELECOMUNICA\u00c7\u00c3O, DE ENERGIA, MEC\u00c2NICA, MEC\u00c2NICA (LINHA DE FORMA\u00c7\u00c3O EM MECATR\u00d4NICA), METAL\u00daRGICA, DE PRODU\u00c7\u00c3O, QU\u00cdMICA<\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\">07-(PUC-MG-015)<\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_m39960bb7.jpg\" alt=\"\" width=\"751\" height=\"147\" name=\"Imagem 19\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Tr\u00eas objetos, em movimento retil\u00edneo<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, est\u00e3o submetidos \u00e0 <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>a\u00e7\u00e3o de for\u00e7as.<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><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>tabela <\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>a seguir mostra as for\u00e7as <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>resultantes sobre cada objeto e suas energias cin\u00e9ticas iniciais e finais, ap\u00f3s<\/b><\/span><\/span><\/span><b> <\/b><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>percorrerem a mesma dist\u00e2ncia<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><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-2015\/puc\/i_8b263bcd65120eba_html_m6d6dfeac.png\" alt=\"\" width=\"713\" height=\"131\" name=\"graphics3\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Sobre o <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>m\u00f3dulo das tr\u00eas for\u00e7as<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, \u00e9 <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>CORRETO<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> afirmar que:<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_m7a164d0a.png\" alt=\"\" width=\"775\" height=\"19\" name=\"graphics4\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\"><span lang=\"en-US\">08-(PUC-MG-015)<\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_2e0e460.jpg\" alt=\"\" width=\"591\" height=\"151\" name=\"Imagem 22\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Uma esfera <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>met\u00e1lica, oca e hermeticamente fechada, cont\u00e9m ar em seu interior<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>. Ela se<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_485ac802.png\" alt=\"\" width=\"168\" height=\"128\" name=\"graphics5\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>encontra <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>flutuando, em equil\u00edbrio, parcialmente submersa em um l\u00edquido<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>. Se o <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>ar for retirado <\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>de seu interior, \u00e9 <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>CORRETO <\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>afirmar que ela:<\/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: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> permanecer\u00e1 no mesmo n\u00edvel, pois seu volume n\u00e3o foi modificado e nem foi alterada a densidade do l\u00edquido.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>b)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> afundar\u00e1 mais, pois sua densidade aumenta.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>c)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> diminuir\u00e1 seu volume submerso, pois sua densidade diminui.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>d)<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> seu volume submerso poder\u00e1 aumentar ou diminuir dependendo dos valores das densidades do ar e do l\u00edquido.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\">09-(PUC-MG-015)<\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_m3fbc15c5.jpg\" alt=\"\" width=\"656\" height=\"149\" name=\"Imagem 25\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Um <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>dep\u00f3sito de \u00e1gua<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> possui, em <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>seu fundo<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, uma <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>v\u00e1lvula de seguran\u00e7a<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> com uma <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00e1rea de 120 cm<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><sup><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>2<\/b><\/span><\/span><\/sup><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>.<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> A<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_54d8e8e2.png\" alt=\"\" width=\"250\" height=\"141\" name=\"graphics6\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>v\u00e1lvula abre-se pela a\u00e7\u00e3o da \u00e1gua<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> quando esta <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>atinge uma altura de 4,0 m <\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>acima do <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>n\u00edvel da v\u00e1lvula<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>. Considerando a <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>densidade da \u00e1gua como \u03c1 = 1,0.10<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><sup><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>3<\/b><\/span><\/span><\/sup><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> Kg\/m<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><sup><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>3<\/b><\/span><\/span><\/sup><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> e g = 10m\/s<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><sup><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>2<\/b><\/span><\/span><\/sup><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>,<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> assinale o <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>valor da for\u00e7a <\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>exercida pela \u00e1gua, necess\u00e1ria para <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>abrir a v\u00e1lvula.<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_m3e4a79a.png\" alt=\"\" width=\"774\" height=\"21\" name=\"graphics7\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>As <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>quest\u00f5es <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\"><b>10 e 11<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> referem-se ao texto a seguir:<\/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>POT\u00caNCIA SOLAR<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>O <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Sol<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> emite uma enorme quantidade de <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>energia <\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>da qual <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>uma parte em um bilh\u00e3o alcan\u00e7a a Terra.<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> N\u00e3o obstante, a quantidade de energia radiante <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>recebida a cada segundo por metro quadrado<\/b><\/span><\/span><\/span><b> <\/b><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>perpendicular aos raios solares, no topo da atmosfera, \u00e9 de 1400 joules (1,4 kJ).<\/b><\/span><\/span><\/span><b><\/b><\/p>\n<p><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Essa <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>quantidade de energia recebida a cada segundo por unidade de \u00e1rea \u00e9 chamada de constante<\/b><\/span><\/span><\/span><b> <\/b><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>solar<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>. Isso \u00e9 <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>equivalente em unidades de pot\u00eancia a 1,4 quilowatts por metro quadrado (1,4 kW\/m<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><sup><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>2<\/b><\/span><\/span><\/sup><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> ).<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> O valor da <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>pot\u00eancia solar<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> que atinge o solo \u00e9 <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>atenuado pela atmosfera<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> e <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>reduzido pelos \u00e2ngulos de eleva\u00e7\u00e3o solar n\u00e3o perpendiculares \u00e0 superf\u00edcie<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>. H\u00e1 tamb\u00e9m, \u00e9 claro, a <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>falta de luz durante a noite.<\/b><\/span><\/span><\/span><b><\/b><\/p>\n<p><span style=\"color: #0033cc;\"><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>pot\u00eancia solar m\u00e9dia<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> recebida nos Estados Unidos, considerando-se <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>dia e noite, ver\u00e3o e inverno<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, \u00e9 <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>cerca de 15% da pot\u00eancia incidente nas partes altas da atmosfera<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>. (Texto adaptado de HEWWITT. P. G. F\u00edsica Conceitual. 9a Edi\u00e7\u00e3o, 2002.)<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\">10-(PUC-MG-015)<\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_m66f16ebc.jpg\" alt=\"\" width=\"676\" height=\"136\" name=\"Imagem 28\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Considerando-se um chuveiro el\u00e9trico com pot\u00eancia de 4200 W, a superf\u00edcie necess\u00e1ria<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, em solo dos Estados Unidos, para suprir a pot\u00eancia desse <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>equipamento com energia<\/b><\/span><\/span><\/span><b> <\/b><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>solar radiante teria uma \u00e1rea<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> de aproximadamente:<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_7eb998c6.png\" alt=\"\" width=\"775\" height=\"18\" name=\"graphics8\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\">11-(PUC-MG-015)<\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_76b1b6bb.jpg\" alt=\"\" width=\"714\" height=\"141\" name=\"Imagem 31\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0033cc;\"><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>energia solar incidente<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> nas <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>partes altas<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> da atmosfera em <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>cada 100 segundos<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> sobre <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>cada km<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><sup><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>2<\/b><\/span><\/span><\/sup><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> \u00e9 de aproximadamente<\/b><\/span><\/span><\/span><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>:<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0033cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>a) 1,4 .108 J b) 1,4 x 1011 J c) 1,4 x 106 kJ d) 1,4 x 103 kJ<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\">12-(PUC-MG-015)<\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_m39960bb7.jpg\" alt=\"\" width=\"731\" height=\"141\" name=\"Imagem 26\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Um <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>carro <\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>move-se em <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>trajet\u00f3ria retil\u00ednea com velocidade constante<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>. Seus <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>pneus,<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> montados sobre as<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_m782de2e5.png\" alt=\"\" width=\"190\" height=\"90\" name=\"Imagem 6\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>rodas, t\u00eam um <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>di\u00e2metro de 50 cm<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> e giram com uma <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>velocidade angular \u03c9 = 40<\/b><\/span><\/span><\/span><b> <\/b><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>rad\/s.<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> Assinale a <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>dist\u00e2ncia percorrida<\/b><\/span><\/span><\/span><span style=\"color: #003399;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> por esse ve\u00edculo ao <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>final de um minuto.<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/universidades-2015\/puc\/i_8b263bcd65120eba_html_m5faaed8a.png\" alt=\"\" width=\"774\" height=\"21\" name=\"graphics9\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<h3><a title=\"Resolu\u00e7\u00e3o comentada da PUC-MG 2015\" href=\"http:\/\/fisicaevestibular.com.br\/novo\/universidades-2015\/exercicios-resolvidos-da-puc-mg-2015\/resolucao-comentada-da-puc-mg-2015\/\"><span style=\"color: #000080;\">Confira a resolu\u00e7\u00e3o comentada<\/span><\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"<p>A\u00a0Pontif\u00edcia Universidade Cat\u00f3lica de Minas Gerais\u00a0(PUC Minas) \u00e9 uma institui\u00e7\u00e3o de ensino superior, privada e cat\u00f3lica brasileira situada em Belo Horizonte, capital do estado de Minas Gerais. Fundada em 1958 sob o nome de Universidade Cat\u00f3lica de Minas Gerais, PUC Minas \u00e9 a maior universidade cat\u00f3lica do mundo e uma das mais prestigiosas universidades brasileiras[2, presente tamb\u00e9m no ranking das<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":5,"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-586","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/586","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=586"}],"version-history":[{"count":3,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/586\/revisions"}],"predecessor-version":[{"id":10995,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/586\/revisions\/10995"}],"up":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/5"}],"wp:attachment":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/media?parent=586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}