{"id":3941,"date":"2018-04-30T19:31:32","date_gmt":"2018-04-30T19:31:32","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=3941"},"modified":"2024-07-15T03:08:16","modified_gmt":"2024-07-15T03:08:16","slug":"escola-naval-20182017","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/universidades-2018\/escola-naval-20182017\/","title":{"rendered":"Escola Naval 2018\/2017"},"content":{"rendered":"

\"Escola<\/h3>\n

A Escola Naval \u00e9 considerada a mais antiga Institui\u00e7\u00e3o de ensino superior do Pa\u00eds e \u00e9 a academia militar formadora de oficiais de carreira da Marinha do Brasil, nas modalidades de oficial de armada, de intend\u00eancia ou fuzileiro naval. A Escola Naval tem duas formas de admiss\u00e3o de alunos: processo seletivo direto (PSAEN \u2013 Processo Seletivo de Admiss\u00e3o \u00e0 Escola Naval) ou a entrada por meio do Col\u00e9gio Naval.<\/b><\/span><\/span><\/span><\/p>\n

A Escola Naval est\u00e1 localizada na Ilha de Villegagnon, na cidade do Rio de Janeiro. O processo seletivo \u00e9 composto de duas fases, com provas de matem\u00e1tica, portugu\u00eas, ingl\u00eas e f\u00edsica. Embora voltado para o Ensino M\u00e9dio, uma peculiaridade do concurso \u00e9 a presen\u00e7a de alguns conte\u00fados de Ensino Superior, como o C\u00e1lculo Diferencial e Integral, cobrado na matem\u00e1tica.<\/b><\/span><\/span><\/span><\/p>\n

A dura\u00e7\u00e3o do curso \u00e9 de 4 anos, em regime interno e na condi\u00e7\u00e3o de Aspirante. Ap\u00f3s o t\u00e9rmino do curso, o aluno \u00e9 promovido a Guarda-Marinha. Ap\u00f3s a viagem de instru\u00e7\u00e3o, ser\u00e1 nomeado Oficial no posto de 2\u00ba Tenente.<\/b><\/span><\/span><\/span><\/p>\n

Requisitos de Inscri\u00e7\u00e3o<\/b><\/span><\/span><\/span><\/p>\n

Os principais requisitos para os candidatos, exclusivamente do sexo masculino s\u00e3o:<\/b><\/span><\/span><\/span><\/p>\n

Idade: mais de 18 anos e menos de 23 anos de idade na data prevista para o in\u00edcio do curso;<\/b><\/span><\/span><\/span><\/p>\n

Ser brasileiro nato e ter conclu\u00eddo, com aproveitamento, o Ensino M\u00e9dio ou estar em fase de conclus\u00e3o;<\/b><\/span><\/span><\/span><\/p>\n

Estado Civil: ser solteiro, nunca haver vivido em concubinato ou uni\u00e3o est\u00e1vel e n\u00e3o ter filhos.<\/b><\/span><\/span><\/span><\/p>\n

01- (ESCOLA NAVAL \u2013 2017\/2018) <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Dois navios <\/b><\/span><\/span><\/span>da Marinha de Guerra, as <\/b><\/span><\/span><\/span>Fragatas Independ\u00eancia e Rademaker, <\/b><\/span><\/span><\/span>encontram-se<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

pr\u00f3ximos a um farol. <\/b><\/span><\/span><\/span><\/p>\n

A <\/b><\/span><\/span><\/span>Fragata Independ\u00eancia <\/b><\/span><\/span><\/span>segue em <\/b><\/span><\/span><\/span>dire\u00e7\u00e3o ao norte<\/b><\/span><\/span><\/span> com <\/b><\/span><\/span><\/span>velocidade de 15\u221a2 n\u00f3s <\/b><\/span><\/span><\/span>e a <\/b><\/span><\/span><\/span>Fragata Rademaker,<\/b><\/span><\/span><\/span> em <\/b><\/span><\/span><\/span>dire\u00e7\u00e3o ao nordeste com velocidade de 20 n\u00f3s.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

Considere que <\/b><\/span><\/span><\/span>ambas as velocidades foram medidas em rela\u00e7\u00e3o ao farol. <\/b><\/span><\/span><\/span>Se na <\/b><\/span><\/span><\/span>regi\u00e3o <\/b><\/span><\/span><\/span>h\u00e1 uma <\/b><\/span><\/span><\/span>corrente mar\u00edtima de 2,0 n\u00f3s <\/b><\/span><\/span><\/span>no <\/b><\/span><\/span><\/span>sentido norte-sul, <\/b><\/span><\/span><\/span>qual o <\/b><\/span><\/span><\/span>m\u00f3dulo da velocidade relativa da Fragata Independ\u00eancia, em n\u00f3s, em rela\u00e7\u00e3o \u00e0 Fragata Rademaker?\u00a0<\/b><\/span><\/span><\/span> a) <\/b><\/span><\/span><\/span>10,0 <\/b><\/span><\/span><\/span>b) <\/b><\/span><\/span><\/span>12,3 <\/b><\/span><\/span><\/span>c) <\/b><\/span><\/span><\/span>13,7 <\/b><\/span><\/span><\/span>d) <\/b><\/span><\/span><\/span>15,8 <\/b><\/span><\/span><\/span>e) <\/b><\/span><\/span><\/span>16,7<\/b><\/span><\/span><\/span><\/p>\n

02- (ESCOLA NAVAL \u2013 2017\/2018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

03- (ESCOLA NAVAL \u2013 2017\/2018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Analise a figura abaixo.\u00a0<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

A <\/b><\/span><\/span><\/span>figura acim<\/b><\/span><\/span><\/span>a exibe um <\/b><\/span><\/span><\/span>bloco de 12 kg <\/b><\/span><\/span><\/span>que se encontra na <\/b><\/span><\/span><\/span>horizontal sobre uma plataforma<\/b><\/span><\/span><\/span> de <\/b><\/span><\/span><\/span>3,0 kg. <\/b><\/span><\/span><\/span><\/p>\n

O <\/b><\/span><\/span><\/span>bloco<\/b><\/span><\/span><\/span> est\u00e1 preso a uma <\/b><\/span><\/span><\/span>corda de massa desprez\u00edvel <\/b><\/span><\/span><\/span>que passa por uma <\/b><\/span><\/span><\/span>roldana <\/b><\/span><\/span><\/span>de <\/b><\/span><\/span><\/span>massa<\/b><\/span><\/span><\/span> e <\/b><\/span><\/span><\/span>atrito desprez\u00edveis fixada na pr\u00f3pria plataforma.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

Os <\/b><\/span><\/span><\/span>coeficientes de atrito est\u00e1tico e cin\u00e9tico <\/b><\/span><\/span><\/span>entre as <\/b><\/span><\/span><\/span>superf\u00edcies de contato <\/b><\/span><\/span><\/span>(bloco e plataforma) s\u00e3o, <\/b><\/span><\/span><\/span>respectivamente, 0,3 e 0,2. <\/b><\/span><\/span><\/span><\/p>\n

A <\/b><\/span><\/span><\/span>plataforma,<\/b><\/span><\/span><\/span> por sua vez, encontra-se <\/b><\/span><\/span><\/span>inicialmente em repouso sobre uma superf\u00edcie horizontal sem atrito.<\/b><\/span><\/span><\/span><\/p>\n

Considere que em um <\/b><\/span><\/span><\/span>dado instante uma for\u00e7a horizontal \"\"passa a atuar <\/b><\/span><\/span><\/span>sobre a <\/b><\/span><\/span><\/span>extremidade livre da corda, <\/b><\/span><\/span><\/span>conforme indicado <\/b><\/span><\/span><\/span>na figura. <\/b><\/span><\/span><\/span>Para que <\/b><\/span><\/span><\/span>n\u00e3o haja escorregamento entre o bloco <\/b><\/span><\/span><\/span>e <\/b><\/span><\/span><\/span>plataforma, o maior valor do m\u00f3dulo da for\u00e7a\u00a0\"\"aplicada, em newtons, <\/b><\/span><\/span><\/span>\u00e9<\/b><\/span><\/span><\/span><\/p>\n

Dado: g = 10 m\/s<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span><\/p>\n

\"\"<\/p>\n

04- (ESCOLA NAVAL \u2013 2017\/2018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Analise <\/b><\/span><\/span><\/span>a <\/b><\/span><\/span><\/span>figura abaixo<\/b><\/span><\/span><\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0\"\"<\/span><\/p>\n

As <\/b><\/span><\/span><\/span>cargas pontuais Q<\/b><\/span><\/span><\/span>1<\/b><\/span><\/span><\/sub><\/span>\u00a0= +q<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sub><\/span>\u00a0e <\/b><\/span><\/span><\/span>Q<\/b><\/span><\/span><\/span>2 <\/b><\/span><\/span><\/sub><\/span>= -q<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sub><\/span>\u00a0est\u00e3o equidistantes da carga Q<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sub><\/span>, <\/b><\/span><\/span><\/span>que <\/b><\/span><\/span><\/span>tamb\u00e9m<\/b><\/span><\/span><\/span> possui <\/b><\/span><\/span><\/span>m\u00f3dulo igual a q<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sub><\/span>, <\/b><\/span><\/span><\/span>mas seu <\/b><\/span><\/span><\/span>sinal \u00e9 desconhecido. <\/b><\/span><\/span><\/span><\/p>\n

A <\/b><\/span><\/span><\/span>carga Q<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sub><\/span>\u00a0<\/b><\/span><\/span><\/span>est\u00e1 <\/b><\/span><\/span><\/span>fixada <\/b><\/span><\/span><\/span>no <\/b><\/span><\/span><\/span>ponto P sobre<\/b><\/span><\/span><\/span> o <\/b><\/span><\/span><\/span>eixo y<\/b><\/span><\/span><\/span>, conforme indica a <\/b><\/span><\/span><\/span>figura acima. <\/b><\/span><\/span><\/span><\/p>\n

Considerando <\/b><\/span><\/span><\/span>D = 2,0m e kq<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sub><\/span>2 <\/b><\/span><\/span><\/sup><\/span>= 10 N.m<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>\u00a0<\/b><\/span><\/span><\/span>(k \u00e9 a constante eletrost\u00e1tica), <\/b><\/span><\/span><\/span>qual a express\u00e3o do m\u00f3dulo da for\u00e7a el\u00e9trica resultante em Q<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sub><\/span>, <\/b><\/span><\/span><\/span>em newtons, e em <\/b><\/span><\/span><\/span>fun\u00e7\u00e3o de y?<\/b><\/span><\/span><\/span><\/p>\n

\"\"\u00a0<\/span><\/p>\n

05- (ESCOLA NAVAL \u2013 2017\/2018)<\/b><\/span><\/span><\/span><\/p>\n

Analise<\/b><\/span><\/span><\/span> a <\/b><\/span><\/span><\/span>figura abaixo.\u00a0<\/b><\/span><\/span><\/span><\/p>\n

\"\"\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span><\/p>\n

06- (ESCOLA NAVAL \u2013 2017\/2018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Analise<\/b><\/span><\/span><\/span> o <\/b><\/span><\/span><\/span>gr\u00e1fico a seguir.\u00a0<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

07- (ESCOLA NAVAL \u2013 2017\/2018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

08- (ESCOLA NAVAL \u2013 2017\/2018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\u00a0a) GMT<\/b><\/span><\/span><\/span>2 <\/b><\/span><\/span><\/sup><\/span>= 2\u03c0<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>D<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>; o <\/b><\/span><\/span><\/span>vetor velocidade linear <\/b><\/span><\/span><\/span>de cada uma das estrelas em rela\u00e7\u00e3o ao centro de massa do <\/b><\/span><\/span><\/span>sistema \u00e9 constante;<\/b><\/span><\/span><\/span> a <\/b><\/span><\/span><\/span>energia mec\u00e2nica do sistema <\/b><\/span><\/span><\/span>\u00e9 <\/b><\/span><\/span><\/span>conservada.<\/b><\/span><\/span><\/span><\/p>\n

b)\u00a0GMT<\/b><\/span><\/span><\/span>2 <\/b><\/span><\/span><\/sup><\/span>= 2\u03c0<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>D<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>; a <\/b><\/span><\/span><\/span>velocidade angular <\/b><\/span><\/span><\/span>de cada uma das estrelas em rela\u00e7\u00e3o ao centro de massa do <\/b><\/span><\/span><\/span>sistema \u00e9 constante; <\/b><\/span><\/span><\/span>a <\/b><\/span><\/span><\/span>energia cin\u00e9tica do sistema \u00e9 conservada.<\/b><\/span><\/span><\/span><\/p>\n

c) GMT<\/b><\/span><\/span><\/span>2 <\/b><\/span><\/span><\/sup><\/span>=\u00a0\u03c0<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>D<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>; a <\/b><\/span><\/span><\/span>velocidade angular <\/b><\/span><\/span><\/span>de cada uma das estrelas em rela\u00e7\u00e3o ao centro de massa do <\/b><\/span><\/span><\/span>sistema \u00e9 constante<\/b><\/span><\/span><\/span>; a <\/b><\/span><\/span><\/span>energia mec\u00e2nica de cada uma das estrelas \u00e9 conservada.\u00a0<\/b><\/span><\/span><\/span><\/p>\n

d) <\/b><\/span><\/span><\/span>2GMT<\/b><\/span><\/span><\/span>2\u00a0<\/b><\/span><\/span><\/sup><\/span>=\u00a0\u03c0<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>D<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>\u00a0; o <\/b><\/span><\/span><\/span>vetor velocidade linear <\/b><\/span><\/span><\/span>de cada uma das estrelas em rela\u00e7\u00e3o ao centro de massa do <\/b><\/span><\/span><\/span>sistema \u00e9 constante<\/b><\/span><\/span><\/span>; a <\/b><\/span><\/span><\/span>energia mec\u00e2nica do sistema \u00e9 conservada.<\/b><\/span><\/span><\/span><\/p>\n

e) 2GMT<\/b><\/span><\/span><\/span>2 <\/b><\/span><\/span><\/sup><\/span>=\u00a0\u03c0<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>D<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>; a <\/b><\/span><\/span><\/span>velocidade angular <\/b><\/span><\/span><\/span>de cada uma das estrelas em rela\u00e7\u00e3o ao centro de massa do <\/b><\/span><\/span><\/span>sistema \u00e9 constante<\/b><\/span><\/span><\/span>; a <\/b><\/span><\/span><\/span>energia mec\u00e2nica de cada uma das estrelas \u00e9 conservada.\u00a0<\/b><\/span><\/span><\/span><\/p>\n

09- (ESCOLA NAVAL \u2013 2017\/2018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

10- (ESCOLA NAVAL \u2013 2017\/2018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Analise<\/b><\/span><\/span><\/span> o <\/b><\/span><\/span><\/span>gr\u00e1fico abaixo.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

11- (ESCOLA NAVAL \u2013 2017\/2018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Analise<\/b><\/span><\/span><\/span> a <\/b><\/span><\/span><\/span>figura abaixo.\u00a0<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

A <\/b><\/span><\/span><\/span>figura acima <\/b><\/span><\/span><\/span>representa um <\/b><\/span><\/span><\/span>pulso P <\/b><\/span><\/span><\/span>que se <\/b><\/span><\/span><\/span>propaga em uma corda I, <\/b><\/span><\/span><\/span>de <\/b><\/span><\/span><\/span>densidade linear \u03bc<\/b><\/span><\/span><\/span>I<\/b><\/span><\/span><\/sub><\/span>, <\/b><\/span><\/span><\/span>em <\/b><\/span><\/span><\/span>dire\u00e7\u00e3o a uma corda II,<\/b><\/span><\/span><\/span> de <\/b><\/span><\/span><\/span>densidade linear \u03bc<\/b><\/span><\/span><\/span>II<\/b><\/span><\/span><\/sub><\/span>. <\/b><\/span><\/span><\/span><\/p>\n

O <\/b><\/span><\/span><\/span>ponto Q <\/b><\/span><\/span><\/span>\u00e9 o <\/b><\/span><\/span><\/span>ponto de jun\u00e7\u00e3o das duas cordas. <\/b><\/span><\/span><\/span><\/p>\n

Sabendo que <\/b><\/span><\/span><\/span>\u03bc<\/b><\/span><\/span><\/span>I\u00a0<\/b><\/span><\/span><\/sub><\/span>> \u03bc<\/b><\/span><\/span><\/span>II<\/b><\/span><\/span><\/sub><\/span>, o <\/b><\/span><\/span><\/span>perfil da corda logo ap\u00f3s a passagem do pulso P pela jun\u00e7\u00e3o Q <\/b><\/span><\/span><\/span>\u00e9 melhor <\/b><\/span><\/span><\/span>representado por<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

12- (ESCOLA NAVAL \u2013 2017\/2018)<\/b><\/span><\/span><\/span><\/p>\n

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

Analise<\/b><\/span><\/span><\/span> a <\/b><\/span><\/span><\/span>figura abaixo.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

 <\/p>\n

Confira a resolu\u00e7\u00e3o comentada<\/span><\/a><\/h3>\n

 <\/p>\n

Clique aqui para ver sobre o tema!<\/a><\/p>\n

Confira as v\u00eddeo aulas!<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

A Escola Naval \u00e9 considerada a mais antiga Institui\u00e7\u00e3o de ensino superior do Pa\u00eds e \u00e9 a academia militar formadora de oficiais de carreira da Marinha do Brasil, nas modalidades de oficial de armada, de intend\u00eancia ou fuzileiro naval. A Escola Naval tem duas formas de admiss\u00e3o de alunos: processo seletivo direto (PSAEN \u2013 Processo Seletivo de Admiss\u00e3o \u00e0 Escola<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3353,"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-3941","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3941","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=3941"}],"version-history":[{"count":5,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3941\/revisions"}],"predecessor-version":[{"id":10388,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3941\/revisions\/10388"}],"up":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3353"}],"wp:attachment":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/media?parent=3941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}