{"id":1422,"date":"2015-10-07T02:13:51","date_gmt":"2015-10-07T02:13:51","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=1422"},"modified":"2024-09-03T13:40:33","modified_gmt":"2024-09-03T13:40:33","slug":"colegio-naval-20152016","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/universidades-2016\/colegio-naval-20152016\/","title":{"rendered":"Col\u00e9gio Naval – 2015\/2016"},"content":{"rendered":"


\n\"\"<\/span><\/span><\/p>\n

O<\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>Col\u00e9gio Naval\u00a0<\/span><\/span><\/span>\u00e9 uma\u00a0institui\u00e7\u00e3o\u00a0<\/span><\/span>militar<\/b><\/span><\/span><\/span><\/a>\u00a0de ensino\u00a0com mais de meio s\u00e9culo de exist\u00eancia localizada na enseada Batista das Neves, no munic\u00edpio de\u00a0<\/span><\/span>Angra dos Reis<\/b><\/span><\/span><\/span><\/a>, estado do\u00a0<\/span><\/span>Rio de Janeiro<\/b><\/span><\/span><\/span><\/a>, cuja\u00a0miss\u00e3o \u00e9 preparar candidatos para o ingresso no<\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>Curso de Gradua\u00e7\u00e3o da\u00a0<\/span><\/span><\/span>Escola Naval<\/b><\/span><\/span><\/span><\/a>, respons\u00e1vel pela forma\u00e7\u00e3o de<\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>Oficiais da\u00a0<\/span><\/span><\/span>Marinha do Brasil<\/b><\/span><\/span><\/span><\/a>.<\/span><\/span><\/span><\/p>\n

Para\u00a0estudar no Col\u00e9gio Naval\u00a0deve-se prestar o\u00a0<\/span><\/span>CPACN\u00a0<\/span><\/span><\/span>(Concurso P\u00fablico de Admiss\u00e3o ao Col\u00e9gio Naval), realizado\u00a0anualmente pela<\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>DEnsM, Diretoria de Ensino da Marinha<\/span><\/span><\/span>. O PSACN \u00e9\u00a0constitu\u00eddo de<\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>duas fases,<\/span><\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>sendo que a\u00a0<\/span><\/span>primeira \u00e9 a de Matem\u00e1tica<\/span><\/span><\/span>. Os candidatos\u00a0aprovados na primeira fase avan\u00e7am para a<\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>segunda,<\/span><\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>constitu\u00edda pelas mat\u00e9rias<\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>Portugu\u00eas, Estudos Sociais, Ci\u00eancias e Reda\u00e7\u00e3o.<\/span><\/span><\/span>\u00a0O concurso \u00e9 a n\u00edvel de Ensino Fundamental, e \u00e9\u00a0disputado a n\u00edvel nacional. \u00c9 um dos\u00a0<\/span><\/span>concursos mais dif\u00edceis e concorridos\u00a0da Am\u00e9rica Latina para essa faixa et\u00e1ria (15-18 anos)<\/span><\/span><\/span>, sendo recomendado alguns meses de preparo. O concurso ainda conta com um exame de sa\u00fade e um exame f\u00edsico, ambos eliminat\u00f3rios.<\/span><\/span><\/p>\n

A Institui\u00e7\u00e3o<\/span><\/span><\/span><\/p>\n

O\u00a0<\/span><\/span>Col\u00e9gio Naval\u00a0<\/span><\/span><\/span>\u00e9 uma tradicional institui\u00e7\u00e3o da\u00a0<\/span><\/span>Marinha do Brasil<\/b><\/span><\/span><\/span><\/a>, com mais de cinq\u00fcenta anos de exist\u00eancia. Tem por objetivo a\u00a0forma\u00e7\u00e3o de seus Alunos para o posterior ingresso na\u00a0<\/span><\/span>Escola Naval<\/b><\/span><\/span><\/span><\/a>, quando passam, ent\u00e3o, a ser Aspirantes. Os candidatos nele ingressam, anualmente,\u00a0por concurso p\u00fablico. O\u00a0curso dura tr\u00eas anos e equivale\u00a0ao\u00a0<\/span><\/span>Ensino M\u00e9dio<\/b><\/span><\/span><\/span><\/a>, acrescido de\u00a0<\/span><\/span>instru\u00e7\u00e3o naval especializada.<\/span><\/span><\/span><\/p>\n

\u00c9\u00a0<\/span><\/span>reconhecido nacionalmente\u00a0como\u00a0centro de excel\u00eancia no ensino secund\u00e1rio no pa\u00eds<\/span><\/span><\/span>, condi\u00e7\u00e3o comprovada pelos \u00faltimos resultados obtidos pela institui\u00e7\u00e3o em avalia\u00e7\u00f5es realizadas pelo Governo Federal em todas as escolas p\u00fablicas do Ensino M\u00e9dio<\/span><\/span><\/p>\n

01-(Col\u00e9gio Naval – 015\/016)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Com <\/b><\/span><\/span><\/span>rela\u00e7\u00e3o aos conceitos f\u00edsicos<\/b><\/span><\/span><\/span>, assinale a op\u00e7\u00e3o INCORRETA<\/b><\/span><\/span><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

(A)<\/b><\/span><\/span><\/span> Quando um <\/b><\/span><\/span><\/span>chuveiro el\u00e9trico<\/b><\/span><\/span><\/span>, considerado \u00f4hmico, tem a sua <\/b><\/span><\/span><\/span>resist\u00eancia diminu\u00edda,<\/b><\/span><\/span><\/span> ocorre um <\/b><\/span><\/span><\/span>aumento da temperatura da \u00e1gua (efeito joule).<\/b><\/span><\/span><\/span><\/p>\n

(B)<\/b><\/span><\/span><\/span> <\/b>Dois corpos<\/b><\/span><\/span><\/span> de <\/b><\/span><\/span><\/span>mesmo material<\/b><\/span><\/span><\/span> recebem a <\/b><\/span><\/span><\/span>mesma quantidade de calor <\/b><\/span><\/span><\/span>de uma fonte t\u00e9rmica. Nesse caso, o <\/b><\/span><\/span><\/span>corpo de menor massa sofrer\u00e1 maior aumento de temperatura.<\/b><\/span><\/span><\/span><\/p>\n

(C)<\/b><\/span><\/span><\/span> A <\/b><\/span><\/span><\/span>roldana fixa<\/b><\/span><\/span><\/span> pode ser considerada como um tipo de <\/b><\/span><\/span><\/span>m\u00e1quina simples que facilita a execu\u00e7\u00e3o de uma tarefa.<\/b><\/span><\/span><\/span><\/p>\n

Entretanto <\/b><\/span><\/span><\/span>n\u00e3o oferece vantagem mec\u00e2nica<\/b><\/span><\/span><\/span> durante o seu uso.<\/b><\/span><\/span><\/span><\/p>\n

(D)<\/b><\/span><\/span><\/span> As <\/b><\/span><\/span><\/span>lentes<\/b><\/span><\/span><\/span> prescritas para uma <\/b><\/span><\/span><\/span>pessoa com miopia s\u00e3o divergentes<\/b><\/span><\/span><\/span> e, nesse caso, quando usadas para observar um objeto, produzem uma <\/b><\/span><\/span><\/span>imagem virtual e maior que o objeto.<\/b><\/span><\/span><\/span><\/p>\n

(E)<\/b><\/span><\/span><\/span> O <\/b><\/span><\/span><\/span>campo magn\u00e9tico da Terra<\/b><\/span><\/span><\/span>, al\u00e9m de permitir o <\/b><\/span><\/span><\/span>uso da b\u00fassola para a navega\u00e7\u00e3o<\/b><\/span><\/span><\/span>, tem a fun\u00e7\u00e3o de <\/b><\/span><\/span><\/span>proteger o planeta contra algumas radia\u00e7\u00f5es eletromagn\u00e9ticas vindas do espa\u00e7o.<\/b><\/span><\/span><\/span><\/p>\n

02-(Col\u00e9gio Naval – 015\/016)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Leia o texto a seguir.<\/b><\/span><\/span><\/span><\/p>\n

\u201c\u00c9 imposs\u00edvel para o <\/b><\/span><\/span><\/span>espelho da alma<\/b><\/span><\/span><\/span> <\/b>refletir na imagina\u00e7\u00e3o alguma coisa que n\u00e3o esteja diante dele.<\/b><\/span><\/span><\/span> \u00c9 imposs\u00edvel que o <\/b><\/span><\/span><\/span>lago tranq\u00fcilo<\/b><\/span><\/span><\/span> mostre em sua profundeza a imagem de qualquer montanha ou o retrato de <\/b><\/span><\/span><\/span>qualquer \u00e1rvore ou nuvem que n\u00e3o exista perto do lago.<\/b><\/span><\/span><\/span> \u00c9 imposs\u00edvel que a <\/b><\/span><\/span><\/span>luz projete na<\/b><\/span><\/span><\/span> <\/b>terra a sombra de um objeto que n\u00e3o exista.<\/b><\/span><\/span><\/span> Nada pode ser <\/b><\/span><\/span><\/span>visto, ouvido ou de outro modo sentido,<\/b><\/span><\/span><\/span> <\/b>sem ter ess\u00eancia real…\u201d<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Trecho de \u201cDesabafo de Segunda-feira\u201d \u2013 Raul Seixas<\/b><\/span><\/span><\/span><\/p>\n

Com base no <\/b><\/span><\/span><\/span>texto acima,<\/b><\/span><\/span><\/span> <\/b>analise <\/b><\/span><\/span><\/span>as afirmativas abaixo.<\/b><\/span><\/span><\/span><\/p>\n

I. <\/b><\/span><\/span><\/span>A <\/b><\/span><\/span><\/span>imagem de um objeto<\/b><\/span><\/span><\/span> mostrada pelo lago tranq\u00fcilo \u00e9 <\/b><\/span><\/span><\/span>virtual, direita e do mesmo tamanho do<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

objeto.<\/b><\/span><\/span><\/span><\/p>\n

II. <\/b><\/span><\/span><\/span>A <\/b><\/span><\/span><\/span>sombra de um objeto projetada pela luz, na terra<\/b><\/span><\/span><\/span>, acontece devido ao <\/b><\/span><\/span><\/span>princ\u00edpio da propaga\u00e7\u00e3o<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

retil\u00ednea da luz.<\/b><\/span><\/span><\/span><\/p>\n

III.<\/b><\/span><\/span><\/span> <\/b>Nada <\/b><\/span><\/span><\/span>pode ser visto<\/b><\/span><\/span><\/span>, sem ter <\/b><\/span><\/span><\/span>ess\u00eancia real.<\/b><\/span><\/span><\/span> Neste caso, a <\/b><\/span><\/span><\/span>vis\u00e3o ocorre por causa da refra\u00e7\u00e3o da<\/b><\/span><\/span><\/span><\/b><\/p>\n

\"\"<\/p>\n

luz ao passar pelos objetos reais.<\/b><\/span><\/span><\/span><\/p>\n

IV.<\/b><\/span><\/span><\/span> <\/b>Ao afirmar que <\/b><\/span><\/span><\/span>nada pode ser ouvido sem ter ess\u00eancia real<\/b><\/span><\/span><\/span>, o autor se refere ao <\/b><\/span><\/span><\/span>som, que \u00e9 uma<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

onda mec\u00e2nica capaz de se propagar em todos os meios materiais.<\/b><\/span><\/span><\/span><\/p>\n

V.<\/b><\/span><\/span><\/span> <\/b>Quanto ao <\/b><\/span><\/span><\/span>espelho,<\/b><\/span><\/span><\/span> pode-se dizer que, <\/b><\/span><\/span><\/span>qualquer um deles (plano ou esf\u00e9rico),<\/b><\/span><\/span><\/span> <\/b>sempre <\/b><\/span><\/span><\/span>produzir\u00e1<\/b><\/span><\/span><\/span><\/p>\n

\"\"\"\"<\/p>\n

imagens <\/b><\/span><\/span><\/span>de coisas que est\u00e3o diante deles.<\/b><\/span><\/span><\/span><\/p>\n

Assinale a op\u00e7\u00e3o <\/b><\/span><\/span><\/span>correta.<\/b><\/span><\/span><\/span><\/p>\n

(A)<\/b><\/span><\/span><\/span> Apenas as afirmativas <\/b><\/span><\/span><\/span>I, II e III s\u00e3o verdadeiras.<\/b><\/span><\/span><\/span><\/p>\n

(B)<\/b><\/span><\/span><\/span> Apenas as afirmativas <\/b><\/span><\/span><\/span>II, IV e V s\u00e3o verdadeiras.<\/b><\/span><\/span><\/span><\/p>\n

(C) <\/b><\/span><\/span><\/span>Apenas as afirmativas <\/b><\/span><\/span><\/span>I, III e V s\u00e3o verdadeiras.<\/b><\/span><\/span><\/span><\/p>\n

(D)<\/b><\/span><\/span><\/span> Apenas as afirmativas <\/b><\/span><\/span><\/span>II, III e V s\u00e3o verdadeiras.<\/b><\/span><\/span><\/span><\/p>\n

(E)<\/b><\/span><\/span><\/span> Apenas as afirmativas <\/b><\/span><\/span><\/span>I, II e IV s\u00e3o verdadeiras<\/b><\/span><\/span><\/span><\/p>\n

03-(Col\u00e9gio Naval – 015\/016)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Fossas <\/b><\/span><\/span><\/span><\/span>abissais <\/b><\/span><\/span><\/span><\/span>ou oce\u00e2nicas s\u00e3o \u00e1reas deprimidas e<\/b><\/span><\/span><\/span><\/span> <\/b>profundas do piso submarino.<\/b><\/span><\/span><\/span><\/span> A <\/b><\/span><\/span><\/span><\/span>maior<\/b><\/span><\/span><\/span><\/span> delas \u00e9 a <\/b><\/span><\/span><\/span><\/span>depress\u00e3o <\/b><\/span><\/span><\/span><\/span>Challenger, na Fossa das Marianas, com 11.033 metros de <\/b><\/span><\/span><\/span><\/span>profundidade e temperatura da \u00e1gua variando entre 0\u00b0C e 2\u00b0C.<\/b><\/span><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

De acordo <\/b><\/span><\/span><\/span><\/span>com o texto,<\/b><\/span><\/span><\/span><\/span> pode-se dizer que a <\/b><\/span><\/span><\/span><\/span>press\u00e3o total <\/b><\/span><\/span><\/span><\/span>sofrida<\/b><\/span><\/span><\/span><\/span> por um corpo que esteja a uma altura de <\/b><\/span><\/span><\/span><\/span>33m acima do <\/b><\/span><\/span><\/span><\/span>solo dessa depress\u00e3o<\/b><\/span><\/span><\/span><\/span> e a <\/b><\/span><\/span><\/span><\/span>varia\u00e7\u00e3o de temperatua na escala <\/b><\/span><\/span><\/span><\/span>absoluta (Kelvin) valem, respectivamente<\/b><\/span><\/span><\/span><\/span><\/p>\n

\n

(A)<\/b><\/span><\/span><\/span><\/span> 1,101.10<\/b><\/span><\/span><\/span><\/span>8<\/b><\/span><\/span><\/span><\/sup><\/span> N\/m<\/b><\/span><\/span><\/span><\/span>2<\/b><\/span><\/span><\/span><\/sup><\/span> e 2K.<\/b><\/span><\/span><\/span><\/span><\/p>\n

(B)<\/b><\/span><\/span><\/span><\/span> 11,01.10<\/b><\/span><\/span><\/span><\/span>8<\/b><\/span><\/span><\/span><\/sup><\/span> N\/m<\/b><\/span><\/span><\/span><\/span>2<\/b><\/span><\/span><\/span><\/sup><\/span> e 2K.<\/b><\/span><\/span><\/span><\/span><\/p>\n

(C)<\/b><\/span><\/span><\/span><\/span> 11,01.10<\/b><\/span><\/span><\/span><\/span>8<\/b><\/span><\/span><\/span><\/sup><\/span> N\/m<\/b><\/span><\/span><\/span><\/span>2<\/b><\/span><\/span><\/span><\/sup><\/span> e 275K.<\/b><\/span><\/span><\/span><\/span><\/p>\n

(D)<\/b><\/span><\/span><\/span><\/span> 110,1.10<\/b><\/span><\/span><\/span><\/span>8<\/b><\/span><\/span><\/span><\/sup><\/span> N\/m<\/b><\/span><\/span><\/span><\/span>2<\/b><\/span><\/span><\/span><\/sup><\/span> e 2K.<\/b><\/span><\/span><\/span><\/span><\/p>\n

Dados: d<\/b><\/span><\/span><\/span><\/span>\u00e1g<\/b><\/span><\/span><\/span><\/sub><\/span>,,,, = 1000 kg\/m<\/b><\/span><\/span><\/span><\/span>3<\/b><\/span><\/span><\/span><\/sup><\/span>
\n<\/b><\/span><\/span><\/span><\/span>g = 10 m\/s<\/b><\/span><\/span><\/span><\/span>2<\/b><\/span><\/span><\/span><\/sup><\/span><\/p>\n

P<\/b><\/span><\/span><\/span><\/span>atm<\/b><\/span><\/span><\/span><\/sub><\/span>=1,O.10<\/b><\/span><\/span><\/span><\/span><\/p>\n<\/div>\n

04-(Col\u00e9gio Naval – 015\/016)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

As <\/b><\/span><\/span><\/span><\/span>especifica\u00e7\u00f5es de um chuveiro el\u00e9trico<\/b><\/span><\/span><\/span><\/span> de uso dom\u00e9stico <\/b><\/span><\/span><\/span><\/span>s\u00e3o <\/b><\/span><\/span><\/span><\/span>220V-2800W-5400.<\/b><\/span><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

As <\/b><\/span><\/span><\/span><\/span>pot\u00eancias nominais <\/b><\/span><\/span><\/span><\/span>especificadas<\/b><\/span><\/span><\/span><\/span> s\u00e3o alcan\u00e7adas com a <\/b><\/span><\/span><\/span><\/span>chave <\/b><\/span><\/span><\/span><\/span>de controle de <\/b><\/span><\/span><\/span><\/span>temperatura na posi\u00e7\u00e3o ver\u00e3o ou inverno.<\/b><\/span><\/span><\/span><\/span> Baseado <\/b><\/span><\/span><\/span><\/span>nessas <\/b><\/span><\/span><\/span><\/span>informa\u00e7\u00f5es,<\/b><\/span><\/span><\/span><\/span> analise as afirmativas abaixo.<\/b><\/span><\/span><\/span><\/span><\/p>\n

I –<\/b><\/span><\/span><\/span><\/span> o <\/b><\/span><\/span><\/span><\/span>disjuntor <\/b><\/span><\/span><\/span><\/span>recomendado para o <\/b><\/span><\/span><\/span><\/span>uso do chuveiro em <\/b><\/span><\/span><\/span><\/span>condi\u00e7\u00f5es de pot\u00eancia m\u00e1xima deve ser de 30A.<\/b><\/span><\/span><\/span><\/span><\/p>\n

II –<\/b><\/span><\/span><\/span><\/span> a <\/b><\/span><\/span><\/span><\/span>resist\u00eancia el\u00e9trica<\/b><\/span><\/span><\/span><\/span> do chuveiro com a chave na <\/b><\/span><\/span><\/span><\/span>posi\u00e7\u00e3o inverno<\/b><\/span><\/span><\/span><\/span> \u00e9 de aproximadamente <\/b><\/span><\/span><\/span><\/span>9\u2126.<\/b><\/span><\/span><\/span><\/span><\/p>\n

III –<\/b><\/span><\/span><\/span><\/span> com a <\/b><\/span><\/span><\/span><\/span>chave na posi\u00e7\u00e3o ver\u00e3o,<\/b><\/span><\/span><\/span><\/span> a <\/b><\/span><\/span><\/span><\/span>resist\u00eancia el\u00e9trica<\/b><\/span><\/span><\/span><\/span> do <\/b><\/span><\/span><\/span><\/span>chuveiro <\/b><\/span><\/span><\/span><\/span>diminui,<\/b><\/span><\/span><\/span><\/span> fazendo a <\/b><\/span><\/span><\/span><\/span>\u00e1gua <\/b><\/span><\/span><\/span><\/span>ficar um <\/b><\/span><\/span><\/span><\/span>pouco mais <\/b><\/span><\/span><\/span><\/span>fria.<\/b><\/span><\/span><\/span><\/span><\/p>\n

Analise a <\/b><\/span><\/span><\/span><\/span>op\u00e7\u00e3o correta.<\/b><\/span><\/span><\/span><\/span><\/p>\n

(A)<\/b><\/span><\/span><\/span><\/span> Apenas a afirmativa I \u00e9 verdadeira.<\/b><\/span><\/span><\/span><\/span><\/p>\n

(B)<\/b><\/span><\/span><\/span><\/span> Apenas a afirmativa II \u00e9 verdadeira.<\/b><\/span><\/span><\/span><\/span><\/p>\n

(C)<\/b><\/span><\/span><\/span><\/span> Apenas a afirmativa III \u00e9 verdadeira.<\/b><\/span><\/span><\/span><\/span><\/p>\n

(D) <\/b><\/span><\/span><\/span><\/span>Apenas as afirmativas I e II s\u00e3o verdadeiras.<\/b><\/span><\/span><\/span><\/span><\/p>\n

(E)<\/b><\/span><\/span><\/span><\/span> Apenas as afirmativas I e III s\u00e3o verdadeiras.<\/b><\/span><\/span><\/span><\/span><\/p>\n

05-(Col\u00e9gio Naval – 015\/016)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Observe <\/b><\/span><\/span><\/span><\/span>a figura a seguir.<\/b><\/span><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Uma das maiores <\/b><\/span><\/span><\/span><\/span>revolu\u00e7\u00f5es<\/b><\/span><\/span><\/span><\/span> ocorridas nas \u00faltimas d\u00e9cadas foi <\/b><\/span><\/span><\/span><\/span>o uso de <\/b><\/span><\/span><\/span><\/span>cabos de fibra \u00f3ptica para o tr\u00e1fego de dados (voz, <\/b><\/span><\/span><\/span><\/span>imagem, som,…) atrav\u00e9s das redes de telecomunica\u00e7\u00e3o.<\/b><\/span><\/span><\/span><\/span><\/p>\n

O <\/b><\/span><\/span><\/span><\/span>maior <\/b><\/span><\/span><\/span><\/span>desses cabos, atualmente, \u00e9 o <\/b><\/span><\/span><\/span><\/span>SeaMeWe 3 que sai da <\/b><\/span><\/span><\/span><\/span>Alemanha e chega at\u00e9 a Coreia do<\/b><\/span><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Sul,<\/b><\/span><\/span><\/span><\/span> passando por 32 <\/b><\/span><\/span><\/span><\/span>pa\u00edses, num total de <\/b><\/span><\/span><\/span><\/span>39.000 km de comprimento.<\/b><\/span><\/span><\/span><\/span> Considerando <\/b><\/span><\/span><\/span><\/span>a <\/b><\/span><\/span><\/span><\/span>trajet\u00f3ria da luz pela fibra \u00f3ptica<\/b><\/span><\/span><\/span><\/span> (ver figura) e que <\/b><\/span><\/span><\/span><\/span>o <\/b><\/span><\/span><\/span><\/span>tempo m\u00e9dio<\/b><\/span><\/span><\/span><\/span> de transmiss\u00e3o de dados entre a <\/b><\/span><\/span><\/span><\/span>Alemanha e a <\/b><\/span><\/span><\/span><\/span>Coreia do Sul<\/b><\/span><\/span><\/span><\/span> seja de, aproximadamente, <\/b><\/span><\/span><\/span><\/span>0,195s,<\/b><\/span><\/span><\/span><\/span> pode-se <\/b><\/span><\/span><\/span><\/span>afirmar que na <\/b><\/span><\/span><\/span><\/span>fibra \u00f3ptica ocorre o fen\u00f4meno da<\/b><\/span><\/span><\/span><\/span><\/p>\n

(A)<\/b><\/span><\/span><\/span><\/span> dispers\u00e3o e a luz tem velocidade de 200.000 km\/s.<\/b><\/span><\/span><\/span><\/span><\/p>\n

(B)<\/b><\/span><\/span><\/span><\/span> reflex\u00e3o e a luz tem velocidade de 200.000 km\/s.<\/b><\/span><\/span><\/span><\/span><\/p>\n

(C)<\/b><\/span><\/span><\/span><\/span> refra\u00e7\u00e3o e a luz tem velocidade de 200.000 km\/s.<\/b><\/span><\/span><\/span><\/span><\/p>\n

(D)<\/b><\/span><\/span><\/span><\/span> reflex\u00e3o e a luz tem velocidade de 300.000 km\/s.<\/b><\/span><\/span><\/span><\/span><\/p>\n

(E)<\/b><\/span><\/span><\/span><\/span> refra\u00e7\u00e3o e a luz tem velocidade de 300.000 km\/s.<\/b><\/span><\/span><\/span><\/span><\/p>\n

06-(Col\u00e9gio Naval – 015\/016)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Um dos <\/b><\/span><\/span><\/span><\/span>brinquedos mais populares<\/b><\/span><\/span><\/span><\/span> de um parque de divers\u00f5es \u00e9 <\/b><\/span><\/span><\/span><\/span>a <\/b><\/span><\/span><\/span><\/span>montanha russa<\/b><\/span><\/span><\/span><\/span>, cujo <\/b><\/span><\/span><\/span><\/span>esbo\u00e7o <\/b><\/span><\/span><\/span><\/span>de um trecho pode ser <\/b><\/span><\/span><\/span><\/span>representado pela <\/b><\/span><\/span><\/span><\/span>figura abaixo<\/b><\/span><\/span><\/span><\/span>.<\/span><\/span><\/span><\/span><\/p>\n

 <\/p>\n

\"\"<\/p>\n

Desprezando-se <\/b><\/span><\/span><\/span><\/span>todos <\/b><\/span><\/span><\/span><\/span>os <\/b><\/span><\/span><\/span><\/span>atritos,<\/b><\/span><\/span><\/span><\/span> considerando que a<\/b><\/span><\/span><\/span><\/span> <\/b>gravidade local vale 10 m\/s<\/b><\/span><\/span><\/span><\/span>2<\/b><\/span><\/span><\/span><\/sup><\/span> e que o carrinho <\/b><\/span><\/span><\/span><\/span>parta do ponto A, a partir do repouso,<\/b><\/span><\/span><\/span><\/span> pode-se afirmar que a sua<\/b><\/span><\/span><\/span><\/span>velocidade <\/b><\/span><\/span><\/span><\/span>no ponto C<\/b><\/span><\/span><\/span><\/span> ser\u00e1 de<\/b><\/span><\/span><\/span><\/span><\/p>\n

 <\/p>\n

\"\"<\/p>\n

Confira a resolu\u00e7\u00e3o comentada dos exerc\u00edcios<\/span><\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"

O\u00a0Col\u00e9gio Naval\u00a0\u00e9 uma\u00a0institui\u00e7\u00e3o\u00a0militar\u00a0de ensino\u00a0com mais de meio s\u00e9culo de exist\u00eancia localizada na enseada Batista das Neves, no munic\u00edpio de\u00a0Angra dos Reis, estado do\u00a0Rio de Janeiro, cuja\u00a0miss\u00e3o \u00e9 preparar candidatos para o ingresso no\u00a0Curso de Gradua\u00e7\u00e3o da\u00a0Escola Naval, respons\u00e1vel pela forma\u00e7\u00e3o de\u00a0Oficiais da\u00a0Marinha do Brasil. Para\u00a0estudar no Col\u00e9gio Naval\u00a0deve-se prestar o\u00a0CPACN\u00a0(Concurso P\u00fablico de Admiss\u00e3o ao Col\u00e9gio Naval), realizado\u00a0anualmente pela\u00a0DEnsM, Diretoria de<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1419,"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-1422","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/1422","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=1422"}],"version-history":[{"count":3,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/1422\/revisions"}],"predecessor-version":[{"id":11012,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/1422\/revisions\/11012"}],"up":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/1419"}],"wp:attachment":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/media?parent=1422"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}