{"id":3147,"date":"2017-08-19T03:02:08","date_gmt":"2017-08-19T03:02:08","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=3147"},"modified":"2024-09-03T17:03:33","modified_gmt":"2024-09-03T17:03:33","slug":"ufpr-2017","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/universidades-2017\/ufpr-2017\/","title":{"rendered":"UFPR 2017"},"content":{"rendered":"

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\nA\u00a0Universidade Federal do Paran\u00e1\u00a0(UFPR)\u00a0\u00e9 a mais antiga\u00a0institui\u00e7\u00e3o de ensino publico federal com concep\u00e7\u00e3o de\u00a0universidade\u00a0do\u00a0Brasil\u00a0.<\/b><\/span><\/span><\/span><\/p>\n

Atualmente as instala\u00e7\u00f5es da universidade est\u00e3o distribu\u00eddas entre a sede, na cidade de\u00a0<\/b><\/span><\/span><\/span>Curitiba<\/b><\/span><\/span><\/span><\/a>\u00a0e os diversos\u00a0<\/b><\/span><\/span><\/span>campi<\/b><\/i><\/span><\/span><\/span>\u00a0em outras cidades do\u00a0Paran\u00e1 \u00a0. A\u00a0UFPR\u00a0adota desde 2004 em seu\u00a0vestibular\u00a0um\u00a0sistema de cotas pr\u00f3prio que reserva 20% das vagas de cada curso para estudantes oriundos de escolas p\u00fablicas\u00a0e 20% para alunos\u00a0negros\u00a0e\u00a0pardos.\u00a0\u00a0Em 2013 passou a adotar, concomitantemente, o sistema de cotas institu\u00eddo pelo governo federal, de modo que cerca de metade das vagas atuais s\u00e3o destinadas os dois grupos j\u00e1 citados<\/b><\/span><\/span><\/span><\/p>\n

A\u00a0UFPR\u00a0\u00e9 conhecida por ter um dos mais dif\u00edceis e exigentes processos seletivos dentre as universidades federais. A 1\u00aa fase \u00e9 composta de 80 quest\u00f5es de conhecimento geral (Matem\u00e1tica,\u00a0F\u00edsica,\u00a0Qu\u00edmica,\u00a0Biologia,\u00a0Hist\u00f3ria,\u00a0Portugu\u00eas,\u00a0Geografia\u00a0e L\u00edngua Estrangeira Moderna). A 2\u00aa Fase \u00e9 dividida em duas etapas:<\/b><\/span><\/span><\/span><\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Compreens\u00e3o e Produ\u00e7\u00e3o de Textos<\/b><\/span><\/span><\/span><\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Provas Espec\u00edficas (vari\u00e1veis conforme o curso desejado)<\/b><\/span><\/span><\/span><\/p>\n

Diferentemente de v\u00e1rias institui\u00e7\u00f5es, a UFPR optou por substituir a tradicional reda\u00e7\u00e3o dissertativa-argumentativa longa (modelo ENEM,\u00a0Fuvest) por 5 propostas mais curtas por\u00e9m mais abrangentes quanto a tema, flexibilidade e conhecimento de mundo do candidato, tornando o exame mais seletivo<\/b><\/span><\/span><\/span><\/p>\n

Diversos\u00a0<\/b><\/span><\/span><\/span>campi<\/b><\/i><\/span><\/span><\/span>\u00a0da universidade:<\/b><\/span><\/span><\/span><\/p>\n

em Curitiba:<\/b><\/span><\/span><\/span><\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span>Campus<\/b><\/i><\/span><\/span><\/span>\u00a0I\u00a0\u2013\u00a0Juvev\u00ea, compreende o setor de Ci\u00eancias Agr\u00e1rias e o Hospital Veterin\u00e1rio (no Cabral) e o\u00a0P\u00f3lo\u00a0da Comunica\u00e7\u00e3o (noJuvev\u00ea)<\/b><\/span><\/span><\/span><\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span>Campus<\/b><\/i><\/span><\/span><\/span>\u00a0II, compreende a Reitoria, o setor de Ci\u00eancias da Sa\u00fade e o Hospital de Cl\u00ednicas (no Alto da Gl\u00f3ria), o Centro de Vis\u00e3o e Departamento de Artes (no Batel)<\/b><\/span><\/span><\/span><\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span>Campus<\/b><\/i><\/span><\/span><\/span>\u00a0III, compreende o Jardim Bot\u00e2nico (no bairro Jardim Bot\u00e2nico), o Centro Polit\u00e9cnico e o Setor de Educa\u00e7\u00e3o Profissional e Tecnol\u00f3gica (no bairro Jardim das Am\u00e9ricas)<\/b><\/span><\/span><\/span><\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span>Campus<\/b><\/i><\/span><\/span><\/span>\u00a0Rebou\u00e7as (no bairro Rebou\u00e7as)<\/b><\/span><\/span><\/span><\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Hospital do Trabalhador (no bairro Port\u00e3o)<\/b><\/span><\/span><\/span><\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span>Maternidade Victor Ferreira do Amaral<\/b><\/span><\/span><\/span><\/a>\u00a0(no bairro \u00c1gua Verde)<\/b><\/span><\/span><\/span><\/p>\n

em outras cidades paranaenses:<\/b><\/span><\/span><\/span><\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span>Campus<\/b><\/i><\/span><\/span><\/span>\u00a0e Setor Palotina, em\u00a0<\/b><\/span><\/span><\/span>Palotina<\/b><\/span><\/span><\/span><\/a><\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span>Campus<\/b><\/i><\/span><\/span><\/span>\u00a0Pontal\u00a0\u2013 Centro de Estudos do Mar, em\u00a0<\/b><\/span><\/span><\/span>Pontal do Paran\u00e1<\/b><\/span><\/span><\/span><\/a><\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span>Campus<\/b><\/i><\/span><\/span><\/span>\u00a0e Setor Litoral, em\u00a0<\/b><\/span><\/span><\/span>Matinhos<\/b><\/span><\/span><\/span><\/a><\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span>Campus<\/b><\/i><\/span><\/span><\/span>\u00a0Avan\u00e7ado\u00a0\u2013 Fazenda Experimental\u00a0Canguiri, em\u00a0<\/b><\/span><\/span><\/span>Pinhais<\/b><\/span><\/span><\/span><\/a><\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span>Campus<\/b><\/i><\/span><\/span><\/span>\u00a0Avan\u00e7ado\u00a0\u2013 Fazenda Experimental Rio Negro, em\u00a0<\/b><\/span><\/span><\/span>Rio Negro<\/b><\/span><\/span><\/span><\/a><\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span>Campus<\/b><\/i><\/span><\/span><\/span>\u00a0Avan\u00e7ado\u00a0\u2013 Fazenda Experimental S\u00e3o Jo\u00e3o do Triunfo, em\u00a0<\/b><\/span><\/span><\/span>S\u00e3o Jo\u00e3o do Triunfo<\/b><\/span><\/span><\/span><\/a><\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span>Campus<\/b><\/i><\/span><\/span><\/span>\u00a0Avan\u00e7ado\u00a0\u2013 Fazenda Experimental Bandeirantes, em\u00a0<\/b><\/span><\/span><\/span>Bandeirantes<\/b><\/span><\/span><\/span><\/a><\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span>Campus<\/b><\/i><\/span><\/span><\/span>\u00a0Avan\u00e7ado\u00a0\u2013 Fazenda Experimental Paranava\u00ed, em\u00a0<\/b><\/span><\/span><\/span>Paranava\u00ed<\/b><\/span><\/span><\/span><\/a><\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Museu de Arqueologia e Etnologia da UFPR, em\u00a0<\/b><\/span><\/span><\/span>Paranagu\u00e1<\/b><\/span><\/span><\/span><\/a><\/p>\n

O\u00a0Hospital de Cl\u00ednicas da Universidade Federal do Paran\u00e1 (ou simplesmente HC)\u00a0\u00e9 o hospital universit\u00e1rio da faculdade de medicina da UFPR. Sua sede est\u00e1 localizada na cidade de Curitiba, capital do Paran\u00e1, sendo o maior hospital do estado.<\/b><\/span><\/span><\/span><\/p>\n

.UFPR\u00a0est\u00e1 entre as\u00a0universidades brasileiras\u00a0consideradas melhores do mundo<\/b><\/span><\/span><\/span><\/p>\n

9\u00b0 colocada\u00a0no ranking no ranking universit\u00e1rio folha de S\u00e3o\u00a0Paulo<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

01- (UFPR-PR-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

02- (UFPR-PR-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

A <\/b><\/span><\/span><\/span>utiliza\u00e7\u00e3o de receptores GPS<\/b><\/span><\/span><\/span> \u00e9 cada vez <\/b><\/span><\/span><\/span>mais frequente em ve\u00edculos. <\/b><\/span><\/span><\/span><\/p>\n

O <\/b><\/span><\/span><\/span>princ\u00edpio de funcionamento <\/b><\/span><\/span><\/span>desse instrumento \u00e9 <\/b><\/span><\/span><\/span>baseado no intervalo de tempo de propaga\u00e7\u00e3o de<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

sinais<\/b><\/span><\/span><\/span>, por meio de <\/b><\/span><\/span><\/span>ondas eletromagn\u00e9ticas, desde<\/b><\/span><\/span><\/span> os <\/b><\/span><\/span><\/span>sat\u00e9lites at\u00e9 os receptores GPS. <\/b><\/span><\/span><\/span><\/p>\n

Considerando a <\/b><\/span><\/span><\/span>velocidade de propaga\u00e7\u00e3o da onda eletromagn\u00e9tica como sendo de 300.000 km\/s <\/b><\/span><\/span><\/span>e que, em <\/b><\/span><\/span><\/span>determinado instante, um dos sat\u00e9lites encontra-se a 30.000 km de dist\u00e2ncia do receptor, qual \u00e9<\/b><\/span><\/span><\/span> o <\/b><\/span><\/span><\/span>tempo de propaga\u00e7\u00e3o da onda eletromagn\u00e9tica emitida por esse sat\u00e9lite GPS at\u00e9 o receptor? <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

03- (UFPR-PR-017)<\/b><\/span><\/span><\/span><\/p>\n

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Quatro resistores<\/b><\/span><\/span><\/span> est\u00e3o <\/b><\/span><\/span><\/span>conectados por meio de fios condutores ideais, <\/b><\/span><\/span><\/span>segundo o <\/b><\/span><\/span><\/span>circuito <\/b><\/span><\/span><\/span>representado na <\/b><\/span><\/span><\/span>figura abaixo.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

O <\/b><\/span><\/span><\/span>circuito \u00e9 alimentado por um gerador ide<\/b><\/span><\/span><\/span>al que fornece uma <\/b><\/span><\/span><\/span>tens\u00e3o el\u00e9trica constante. Inicialmente, <\/b><\/span><\/span><\/span>o circuito foi <\/b><\/span><\/span><\/span>analisado segundo a situa\u00e7\u00e3o 1<\/b><\/span><\/span><\/span> e, <\/b><\/span><\/span><\/span>posteriormente, os pontos A e B foram interligados por meio de um fio condutor, de acordo com a situa\u00e7\u00e3o 2. <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Com <\/b><\/span><\/span><\/span>base nessas informa\u00e7\u00f5es, <\/b><\/span><\/span><\/span>identifique como <\/b><\/span><\/span><\/span>verdadeiras (V) ou falsas (F) as seguintes afirmativas:<\/b><\/span><\/span><\/span> <\/b><\/p>\n

( ) <\/b><\/span><\/span><\/span>A <\/b><\/span><\/span><\/span>intensidade de corrente el\u00e9trica no gerador \u00e9 a mesma para as duas situa\u00e7\u00f5es representadas. <\/b><\/span><\/span><\/span><\/p>\n

( ) <\/b><\/span><\/span><\/span>Ao se <\/b><\/span><\/span><\/span>conectar o fio condutor entre os pontos A e B, <\/b><\/span><\/span><\/span>a <\/b><\/span><\/span><\/span>resist\u00eancia el\u00e9trica do circuito diminui. <\/b><\/span><\/span><\/span><\/p>\n

( ) <\/b><\/span><\/span><\/span>Na <\/b><\/span><\/span><\/span>situa\u00e7\u00e3o 2, a intensidade de corrente el\u00e9trica no gerador aumentar\u00e1, em rela\u00e7\u00e3o \u00e0 situa\u00e7\u00e3o 1.<\/b><\/span><\/span><\/span><\/p>\n

( ) <\/b><\/span><\/span><\/span>A <\/b><\/span><\/span><\/span>diferen\u00e7a de potencial el\u00e9trico entre os pontos A e B, na situa\u00e7\u00e3o 1, \u00e9 maior que zero.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

Assinale a <\/b><\/span><\/span><\/span>alternativa que apresenta a sequ\u00eancia correta, <\/b><\/span><\/span><\/span>de <\/b><\/span><\/span><\/span>cima para baixo. <\/b><\/span><\/span><\/span><\/p>\n

a) <\/b><\/span><\/span><\/span>F \u2013 V \u2013 V \u2013 F. <\/b><\/span><\/span><\/span><\/p>\n

b) <\/b><\/span><\/span><\/span>F \u2013 V \u2013 F \u2013 V. <\/b><\/span><\/span><\/span><\/p>\n

c) <\/b><\/span><\/span><\/span>V \u2013 F \u2013 V \u2013 F. <\/b><\/span><\/span><\/span><\/p>\n

d) <\/b><\/span><\/span><\/span>V \u2013 F \u2013 F \u2013 F. <\/b><\/span><\/span><\/span><\/p>\n

e) <\/b><\/span><\/span><\/span>V \u2013 V \u2013 V \u2013 V.<\/b><\/span><\/span><\/span><\/p>\n

04- (UFPR-PR-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

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05- (UFPR-PR-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

06- (UFPR-PR-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Entre <\/b><\/span><\/span><\/span>as grandezas f\u00edsicas <\/b><\/span><\/span><\/span>que influenciam os <\/b><\/span><\/span><\/span>estados f\u00edsicos das subst\u00e2ncias,<\/b><\/span><\/span><\/span> est\u00e3o o <\/b><\/span><\/span><\/span>volume<\/b><\/span><\/span><\/span>, a <\/b><\/span><\/span><\/span>temperatura<\/b><\/span><\/span><\/span> e a <\/b><\/span><\/span><\/span>press\u00e3o.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

O <\/b><\/span><\/span><\/span>gr\u00e1fico abaixo <\/b><\/span><\/span><\/span>representa o <\/b><\/span><\/span><\/span>comportamento da \u00e1gua com rela\u00e7\u00e3o aos estados f\u00edsicos <\/b><\/span><\/span><\/span>que ela <\/b><\/span><\/span><\/span>pode ter.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Nesse <\/b><\/span><\/span><\/span>gr\u00e1fico<\/b><\/span><\/span><\/span> \u00e9 poss\u00edvel representar os <\/b><\/span><\/span><\/span>estados f\u00edsicos s\u00f3lido, l\u00edquido e gasoso.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

Assinale a <\/b><\/span><\/span><\/span>alternativa que apresenta as grandezas f\u00edsicas correspondentes aos eixos das abscissas e das ordenadas, respectivamente.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

a) <\/b><\/span><\/span><\/span>Press\u00e3o e volume. <\/b><\/span><\/span><\/span><\/p>\n

b) <\/b><\/span><\/span><\/span>Volume e temperatura. <\/b><\/span><\/span><\/span><\/p>\n

c) <\/b><\/span><\/span><\/span>Volume e press\u00e3o. <\/b><\/span><\/span><\/span><\/p>\n

d) <\/b><\/span><\/span><\/span>Temperatura e press\u00e3o. <\/b><\/span><\/span><\/span><\/p>\n

e) <\/b><\/span><\/span><\/span>Temperatura e volume.<\/b><\/span><\/span><\/span><\/p>\n

07- (UFPR-PR-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Um <\/b><\/span><\/span><\/span>objeto s\u00f3lido <\/b><\/span><\/span><\/span>com <\/b><\/span><\/span><\/span>massa 600 g <\/b><\/span><\/span><\/span>e <\/b><\/span><\/span><\/span>volume 1 litro <\/b><\/span><\/span><\/span>est\u00e1 <\/b><\/span><\/span><\/span>parcialmente imerso em um l\u00edquido, <\/b><\/span><\/span><\/span>de<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

maneira que <\/b><\/span><\/span><\/span>80% do seu volume est\u00e3o submersos. <\/b><\/span><\/span><\/span><\/p>\n

Considerando a <\/b><\/span><\/span><\/span>acelera\u00e7\u00e3o da gravidade igual a 10 m\/s<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span> <\/b>, assinale a <\/b><\/span><\/span><\/span>alternativa que apresenta <\/b><\/span><\/span><\/span>a <\/b><\/span><\/span><\/span>massa espec\u00edfica do l\u00edquido.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

08- (UFPR-PR-017)<\/b><\/span><\/span><\/span><\/p>\n

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Entre os <\/b><\/span><\/span><\/span>v\u00e1rios trabalhos cient\u00edficos<\/b><\/span><\/span><\/span> desenvolvidos por <\/b><\/span><\/span><\/span>Albert Einstein, <\/b><\/span><\/span><\/span>destaca-se o <\/b><\/span><\/span><\/span>efeito<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

fotoel\u00e9trico, <\/b><\/span><\/span><\/span>que lhe rendeu o <\/b><\/span><\/span><\/span>Pr\u00eamio Nobel de F\u00edsica de 1921<\/b><\/span><\/span><\/span>. <\/b><\/span><\/span><\/span><\/p>\n

Sobre <\/b><\/span><\/span><\/span>esse efeito,<\/b><\/span><\/span><\/span> amplamente <\/b><\/span><\/span><\/span>utilizado em nossos dias, <\/b><\/span><\/span><\/span>\u00e9 <\/b><\/span><\/span><\/span>correto <\/b><\/span><\/span><\/span>afirmar: <\/b><\/span><\/span><\/span><\/p>\n

a) <\/b><\/span><\/span><\/span>Trata-se da <\/b><\/span><\/span><\/span>possibilidade de a luz incidir em um material <\/b><\/span><\/span><\/span>e torn\u00e1-lo <\/b><\/span><\/span><\/span>condutor, <\/b><\/span><\/span><\/span>desde que a intensidade da <\/b><\/span><\/span><\/span>energia da radia\u00e7\u00e3o luminosa seja superior a um valor limite. <\/b><\/span><\/span><\/span><\/p>\n

b) <\/b><\/span><\/span><\/span>\u00c9 o princ\u00edpio de <\/b><\/span><\/span><\/span>funcionamento das l\u00e2mpadas incandescentes<\/b><\/span><\/span><\/span>, nas quais, por a\u00e7\u00e3o da <\/b><\/span><\/span><\/span>corrente el\u00e9trica que percorre o seu filamento, \u00e9 produzida luz.<\/b><\/span><\/span><\/span><\/p>\n

c) <\/b><\/span><\/span><\/span>Ocorre quando a <\/b><\/span><\/span><\/span>luz atinge um metal e a carga el\u00e9trica do f\u00f3ton \u00e9 absorvida pelo metal, produzindo corrente el\u00e9trica. <\/b><\/span><\/span><\/span><\/p>\n

d) <\/b><\/span><\/span><\/span>\u00c9 o efeito que explica o <\/b><\/span><\/span><\/span>fen\u00f4meno da fa\u00edsca observado quando existe uma diferen\u00e7a de potencial el\u00e9trico suficientemente grande entre dois fios met\u00e1licos pr\u00f3ximos. <\/b><\/span><\/span><\/span><\/p>\n

e) <\/b><\/span><\/span><\/span>Corresponde \u00e0 <\/b><\/span><\/span><\/span>ocorr\u00eancia da emiss\u00e3o de el\u00e9trons <\/b><\/span><\/span><\/span>quando a <\/b><\/span><\/span><\/span>frequ\u00eancia da radia\u00e7\u00e3o luminosa incidente no metal for maior que um determinado valor, o qual depende do tipo de metal em que a luz incidiu.<\/b><\/span><\/span><\/span><\/p>\n

Segunda Fase<\/b><\/span><\/span><\/span><\/p>\n

09- (UFPR-PR-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Foi feito um <\/b><\/span><\/span><\/span>estudo, com uma associa\u00e7\u00e3o de resistores <\/b><\/span><\/span><\/span>de acordo com a <\/b><\/span><\/span><\/span>figura a seguir <\/b><\/span><\/span><\/span>e esta <\/b><\/span><\/span><\/span>associa\u00e7\u00e3o foi conectada a uma fonte de tens\u00e3o com for\u00e7a eletromotriz 7,5 V<\/b><\/span><\/span><\/span> e <\/b><\/span><\/span><\/span>resist\u00eancia interna \u201cr\u201d.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Os <\/b><\/span><\/span><\/span>valores dos resistores da associa\u00e7\u00e3o <\/b><\/span><\/span><\/span>est\u00e3o na <\/b><\/span><\/span><\/span>figura acima indicados.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

Todos<\/b><\/span><\/span><\/span> os <\/b><\/span><\/span><\/span>fios condutore<\/b><\/span><\/span><\/span>s s\u00e3o <\/b><\/span><\/span><\/span>ideais e os resistores s\u00e3o \u00f4hmicos.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

Foi verificado que a <\/b><\/span><\/span><\/span>intensidade de corrente el\u00e9trica no resistor de R<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sub><\/span> era de 0,5 A, <\/b><\/span><\/span><\/span>determine: <\/b><\/span><\/span><\/span><\/p>\n

a) <\/b><\/span><\/span><\/span>O <\/b><\/span><\/span><\/span>resistor equivalente <\/b><\/span><\/span><\/span>da <\/b><\/span><\/span><\/span>associa\u00e7\u00e3o:<\/b><\/span><\/span><\/span> <\/b><\/p>\n

b)<\/b><\/span><\/span><\/span> A <\/b><\/span><\/span><\/span>tens\u00e3o el\u00e9trica nos extremos da associa\u00e7\u00e3o de resistores: <\/b><\/span><\/span><\/span><\/p>\n

c) A resist\u00eancia interna do gerador:<\/b><\/span><\/span><\/span><\/p>\n

10- (UFPR-PR-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Um <\/b><\/span><\/span><\/span>espelho c\u00f4ncavo com raio de curvatura 10 cm <\/b><\/span><\/span><\/span>e <\/b><\/span><\/span><\/span>centro em C, <\/b><\/span><\/span><\/span>foi <\/b><\/span><\/span><\/span>posicionado de acordo <\/b><\/span><\/span><\/span>com a <\/b><\/span><\/span><\/span>figura a seguir.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Um <\/b><\/span><\/span><\/span>objeto O, com 2 cm de altura, <\/b><\/span><\/span><\/span>est\u00e1 <\/b><\/span><\/span><\/span>localizado a 3 cm do espelho <\/b><\/span><\/span><\/span>e <\/b><\/span><\/span><\/span>orientado para baixo, <\/b><\/span><\/span><\/span>a <\/b><\/span><\/span><\/span>partir <\/b><\/span><\/span><\/span>do <\/b><\/span><\/span><\/span>eixo principal. <\/b><\/span><\/span><\/span><\/p>\n

Os <\/b><\/span><\/span><\/span>segmentos que podem ser observados sobre o eixo principal s\u00e3o equidistantes entre si. <\/b><\/span><\/span><\/span><\/p>\n

a) Na figura, assinale o foco do espelho, ressaltando-o<\/b><\/span><\/span><\/span> por meio da <\/b><\/span><\/span><\/span>letra F.<\/b><\/span><\/span><\/span><\/p>\n

b) Determine, graficamente na figura, <\/b><\/span><\/span><\/span>a <\/b><\/span><\/span><\/span>imagem formada, <\/b><\/span><\/span><\/span>representando <\/b><\/span><\/span><\/span>adequadamente<\/b><\/span><\/span><\/span> no <\/b><\/span><\/span><\/span>m\u00ednimo dois raios \u201cnot\u00e1veis\u201d, antes e ap\u00f3s<\/b><\/span><\/span><\/span> a <\/b><\/span><\/span><\/span>ocorr\u00eancia da reflex\u00e3o. <\/b><\/span><\/span><\/span><\/p>\n

c) <\/b><\/span><\/span><\/span>Determine, <\/b><\/span><\/span><\/span>apresentando os devidos c\u00e1lculos<\/b><\/span><\/span><\/span>, o <\/b><\/span><\/span><\/span>tamanho da imagem.<\/b><\/span><\/span><\/span><\/p>\n

 <\/p>\n

Confira a resolu\u00e7\u00e3o comentada<\/span><\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"

A\u00a0Universidade Federal do Paran\u00e1\u00a0(UFPR)\u00a0\u00e9 a mais antiga\u00a0institui\u00e7\u00e3o de ensino publico federal com concep\u00e7\u00e3o de\u00a0universidade\u00a0do\u00a0Brasil\u00a0. Atualmente as instala\u00e7\u00f5es da universidade est\u00e3o distribu\u00eddas entre a sede, na cidade de\u00a0Curitiba\u00a0e os diversos\u00a0campi\u00a0em outras cidades do\u00a0Paran\u00e1 \u00a0. A\u00a0UFPR\u00a0adota desde 2004 em seu\u00a0vestibular\u00a0um\u00a0sistema de cotas pr\u00f3prio que reserva 20% das vagas de cada curso para estudantes oriundos de escolas p\u00fablicas\u00a0e 20% para alunos\u00a0negros\u00a0e\u00a0pardos.\u00a0\u00a0Em 2013 passou<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2648,"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-3147","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3147","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=3147"}],"version-history":[{"count":3,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3147\/revisions"}],"predecessor-version":[{"id":3152,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3147\/revisions\/3152"}],"up":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/2648"}],"wp:attachment":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/media?parent=3147"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}