{"id":1517,"date":"2015-11-16T15:10:51","date_gmt":"2015-11-16T15:10:51","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=1517"},"modified":"2024-09-03T13:37:16","modified_gmt":"2024-09-03T13:37:16","slug":"afa-20152016","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/universidades-2016\/afa-20152016\/","title":{"rendered":"AFA – 2015\/2016"},"content":{"rendered":"

\"\"<\/p>\n

Academia da For\u00e7a A\u00e9rea<\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>(AFA)<\/span><\/span><\/span>\u00a0<\/span><\/span><\/span>\u00e9 um estabelecimento de ensino em n\u00edvel superior da<\/span><\/span>\u00a0<\/span><\/span><\/span>For\u00e7a A\u00e9rea Brasileira<\/b><\/span><\/span><\/span><\/a>,<\/span><\/span><\/span>situado em\u00a0<\/span><\/span>Pirassununga<\/b><\/span><\/span><\/span><\/a>,\u00a0<\/span><\/span><\/span>Estado de S\u00e3o Paulo<\/b><\/span><\/span><\/span><\/a>\u00a0<\/span><\/span><\/span>e reconhecido pelo\u00a0<\/span><\/span>Minist\u00e9rio da Educa\u00e7\u00e3o<\/b><\/span><\/span><\/span><\/a>. Integra o sistema de<\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>forma\u00e7\u00e3o e aperfei\u00e7oamento<\/span><\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>de pessoal do<\/span><\/span>\u00a0<\/span><\/span><\/span>Comando da Aeron\u00e1utica<\/b><\/span><\/span><\/span><\/a>\u00a0(COMAER)<\/span><\/span><\/span>e est\u00e1 subordinada ao Departamento de Ensino<\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>(DEPENS) da\u00a0<\/span><\/span><\/span>For\u00e7a A\u00e9rea Brasileira<\/b><\/span><\/span><\/span><\/a>\u00a0(FAB<\/span><\/span><\/span>.<\/span><\/span><\/span>Tem como finalidade a forma\u00e7\u00e3o de oficiais da ativa para os quadros de<\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>aviadores, <\/span><\/span><\/span>intendentes<\/b><\/span><\/span><\/span><\/a>\u00a0e de infantaria da FAB.<\/span><\/span><\/span><\/p>\n

\u00c9 considerada uma das tr\u00eas melhores escolas de forma\u00e7\u00e3o de pilotos militares do mundo<\/span><\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>eforma n\u00e3o apenas<\/span><\/span>pilotos militares para a For\u00e7a A\u00e9rea Brasileira<\/span><\/span><\/span>,<\/span><\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>como tamb\u00e9m para<\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>For\u00e7as A\u00e9reas de pa\u00edses da Am\u00e9rica Latina, \u00c1frica, \u00c1sia e Europa, mediante acordos internacionais de coopera\u00e7\u00e3o.<\/span><\/span><\/span><\/p>\n

O\u00a0<\/span><\/span>ingresso na AFA ocorre mediante a aprova\u00e7\u00e3o em concursos p\u00fablicos anuais de admiss\u00e3o, de \u00e2mbito nacional<\/span><\/span><\/span>.<\/span><\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>As<\/span><\/span>informa\u00e7\u00f5es<\/span><\/span><\/span>sobre esses concursos est\u00e3o<\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>dispon\u00edveis<\/span><\/span><\/span>em todas as<\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>organiza\u00e7\u00f5es do Comando da Aeron\u00e1utica<\/span><\/span><\/span>.<\/span><\/span><\/span><\/p>\n

Atualmente, a Academia forma<\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>cadetes dos seguintes cursos:<\/span><\/span><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Curso de Forma\u00e7\u00e3o de Oficiais de Infantaria da Aeron\u00e1utica (CFOINF)<\/span><\/span><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Curso de Forma\u00e7\u00e3o de Oficiais Aviadores (CFOAV)<\/span><\/span><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Curso de Forma\u00e7\u00e3o de Oficiais Intendentes (CFOINT).<\/span><\/span><\/span><\/p>\n

Al\u00e9m disso<\/span><\/span>,<\/span><\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>todos os cadetes da Academia<\/span><\/span><\/span>, ao final do curso, recebem o <\/span><\/span>t\u00edtulo de bachar\u00e9is em Administra\u00e7\u00e3o, com \u00eanfase <\/span><\/span><\/span>em \u00a0Administra\u00e7\u00e3o P\u00fablica<\/a>.<\/span><\/span><\/span><\/p>\n

Nas quest\u00f5es de F\u00edsica, quando necess\u00e1rio, use:<\/b><\/span><\/span><\/span><\/p>\n

acelera\u00e7\u00e3o da gravidade:<\/b><\/span><\/span><\/span> g = 10 m\/s\u00b2,<\/b><\/span><\/span><\/span><\/p>\n

densidade da \u00e1gua: <\/b><\/span><\/span><\/span>d = 1,0 kg\/L,<\/b><\/span><\/span><\/span><\/p>\n

calor espec\u00edfico da \u00e1gua: <\/b><\/span><\/span><\/span>c = 1 cal\/g \u00baC,<\/b><\/span><\/span><\/span><\/p>\n

1 cal = 4 J<\/b><\/span><\/span><\/span>,<\/b><\/span><\/span><\/span><\/p>\n

constante eletrost\u00e1tica<\/b><\/span><\/span><\/span>: k = 9,0<\/b><\/span><\/span><\/span> <\/b>. 10<\/b><\/span><\/span><\/span>9<\/b><\/span><\/span><\/sup><\/span> N.m\u00b2\/C\u00b2,<\/b><\/span><\/span><\/span><\/p>\n

e constante universal dos gases perfeitos: <\/b><\/span><\/span><\/span>R = 8 J\/mol.K.<\/b><\/span><\/span><\/span><\/p>\n

01-(AFA – 015\/016)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Dois m\u00f3veis, A e B,<\/b><\/span><\/span><\/span> <\/b>partindo juntos<\/b><\/span><\/span><\/span> de uma mesma posi\u00e7\u00e3o, por\u00e9m com <\/b><\/span><\/span><\/span>velocidades diferentes<\/b><\/span><\/span><\/span>, que<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

variam conforme o <\/b><\/span><\/span><\/span>gr\u00e1fico abaixo<\/b><\/span><\/span><\/span>, ir\u00e3o se <\/b><\/span><\/span><\/span>encontrar novamente em um determinado instante.<\/b><\/span><\/span><\/span> Considerando que os <\/b><\/span><\/span><\/span>intervalos de tempo t<\/b><\/span><\/span><\/span>1<\/b><\/span><\/span><\/sub><\/span> \u2013 t <\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sub><\/span> , t <\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sub><\/span> \u2013 t <\/b><\/span><\/span><\/span>1<\/b><\/span><\/span><\/sub><\/span> , t <\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sub><\/span> \u2013 t <\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sub><\/span> , t <\/b><\/span><\/span><\/span>4<\/b><\/span><\/span><\/sub><\/span> \u2013 t <\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sub><\/span> e t <\/b><\/span><\/span><\/span>5<\/b><\/span><\/span><\/sub><\/span> \u2013 t<\/b><\/span><\/span><\/span>4<\/b><\/span><\/span><\/sub><\/span> s\u00e3o todos iguais<\/b><\/span><\/span><\/span>, os <\/b><\/span><\/span><\/span>m\u00f3veis A e B novamente se encontrar\u00e3o no instante<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

02-(AFA – 015\/016)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Um bal\u00e3o, cheio de um <\/b><\/span><\/span><\/span>certo g\u00e1s<\/b><\/span><\/span><\/span>, que tem <\/b><\/span><\/span><\/span>volume de 2,0 m<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> , \u00e9 mantido em <\/b><\/span><\/span><\/span>repouso<\/b><\/span><\/span><\/span> a uma <\/b><\/span><\/span><\/span>determinada altura <\/b><\/span><\/span><\/span>de uma <\/b><\/span><\/span><\/span>superf\u00edcie horizontal<\/b><\/span><\/span><\/span>, conforme a figura abaixo.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Sabendo-se que a <\/b><\/span><\/span><\/span>massa total do bal\u00e3o (incluindo o g\u00e1s) \u00e9 de 1,6 kg,<\/b><\/span><\/span><\/span> considerando o ar como uma camada uniforme de <\/b><\/span><\/span><\/span>densidade igual a 1,3 kg\/m<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> ,<\/b><\/span><\/span><\/span> pode-se afirmar que ao <\/b><\/span><\/span><\/span>liberar o bal\u00e3o,<\/b><\/span><\/span><\/span> ele<\/b><\/span><\/span><\/span><\/p>\n

a)<\/b><\/span><\/span><\/span> ficar\u00e1 em repouso na posi\u00e7\u00e3o onde est\u00e1.<\/b><\/span><\/span><\/span><\/p>\n

b)<\/b><\/span><\/span><\/span> subir\u00e1 com uma acelera\u00e7\u00e3o de 6,25 m\/s<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span><\/b><\/p>\n

c)<\/b><\/span><\/span><\/span> subir\u00e1 com velocidade constante.<\/b><\/span><\/span><\/span><\/p>\n

d) <\/b><\/span><\/span><\/span>descer\u00e1 com acelera\u00e7\u00e3o de 6,25 m\/s<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span><\/p>\n

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

03-(AFA – 015\/016)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Consultando uma <\/b><\/span><\/span><\/span>tabela da dilata\u00e7\u00e3o t\u00e9rmica dos s\u00f3lidos<\/b><\/span><\/span><\/span> verifica-se que o <\/b><\/span><\/span><\/span>coeficiente de dilata\u00e7\u00e3o<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

linear do ferro \u00e9 13.10<\/b><\/span><\/span><\/span>-6<\/b><\/span><\/span><\/sup><\/span> <\/b>o<\/b><\/span><\/span><\/sup><\/span>C<\/b><\/span><\/span><\/span>-1<\/b><\/span><\/span><\/sup><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

Portanto, pode-se <\/b><\/span><\/span><\/span>concluir que<\/b><\/span><\/span><\/span><\/p>\n

a)<\/b><\/span><\/span><\/span> num dia de ver\u00e3o em que a <\/b><\/span><\/span><\/span>temperatura variar 20 \u00b0C<\/b><\/span><\/span><\/span> o <\/b><\/span><\/span><\/span>comprimento de uma barra de ferro de 10,0 m sofrer\u00e1 uma varia\u00e7\u00e3o de 2,6 cm<\/b><\/span><\/span><\/span><\/p>\n

b)<\/b><\/span><\/span><\/span> o <\/b><\/span><\/span><\/span>coeficiente de dilata\u00e7\u00e3o superficial do ferro \u00e9 169.10<\/b><\/span><\/span><\/span>-6<\/b><\/span><\/span><\/sup><\/span> <\/b>o<\/b><\/span><\/span><\/sup><\/span>C<\/b><\/span><\/span><\/span>-1<\/b><\/span><\/span><\/sup><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

c)<\/b><\/span><\/span><\/span> para <\/b><\/span><\/span><\/span>cada 1 \u00b0C de varia\u00e7\u00e3o de temperatura<\/b><\/span><\/span><\/span>, o <\/b><\/span><\/span><\/span>comprimento de uma barra de 1,0 m desse material varia 13.10<\/b><\/span><\/span><\/span>-6<\/b><\/span><\/span><\/sup><\/span>m\u22c5<\/b><\/span><\/span><\/span><\/p>\n

d)<\/b><\/span><\/span><\/span> o <\/b><\/span><\/span><\/span>coeficiente de dilata\u00e7\u00e3o volum\u00e9trica do ferro \u00e9 39.10<\/b><\/span><\/span><\/span>-18<\/b><\/span><\/span><\/sup><\/span> <\/b>o<\/b><\/span><\/span><\/sup><\/span>C<\/b><\/span><\/span><\/span>-1<\/b><\/span><\/span><\/sup><\/span><\/p>\n

04-(AFA – 015\/016)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

05-(AFA – 015\/016)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Considere um <\/b><\/span><\/span><\/span>objeto <\/b><\/span><\/span><\/span>formado por uma <\/b><\/span><\/span><\/span>combina\u00e7\u00e3o de um quadrado de aresta a cujos v\u00e9rtices s\u00e3o centro geom\u00e9trico de c\u00edrculos e quadrados menores, como mostra a figura abaixo.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Colocando-se um <\/b><\/span><\/span><\/span>espelho plano, espelhado em ambos os lados<\/b><\/span><\/span><\/span>, de dimens\u00f5es infinitas e de espessura desprez\u00edvel ao <\/b><\/span><\/span><\/span>longo da reta r, <\/b><\/span><\/span><\/span>os <\/b><\/span><\/span><\/span>observadores colocados nas posi\u00e7\u00f5es 1 e 2<\/b><\/span><\/span><\/span> veriam, <\/b><\/span><\/span><\/span>respectivamente, objetos completos com as seguintes formas<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

06-(AFA – 015\/016)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

A <\/b><\/span><\/span><\/span>figura abaixo<\/b><\/span><\/span><\/span> mostra uma <\/b><\/span><\/span><\/span>pequena esfera vazada E,<\/b><\/span><\/span><\/span> com <\/b><\/span><\/span><\/span>carga el\u00e9trica q = + 2,0.10<\/b><\/span><\/span><\/span>-5 <\/b><\/span><\/span><\/sup><\/span>C<\/b><\/span><\/span><\/span> e <\/b><\/span><\/span><\/span>massa 80<\/b><\/span><\/span><\/span> <\/b>g,<\/b><\/span><\/span><\/span> perpassada por um eixo retil\u00edneo situado num plano horizontal e <\/b><\/span><\/span><\/span>distante D = 3m de uma carga puntiforme fixa Q = -3,0.10<\/b><\/span><\/span><\/span>-6<\/b><\/span><\/span><\/sup><\/span> C.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Se a esfera for <\/b><\/span><\/span><\/span>abandonada, em repouso, no ponto A, a uma dist\u00e2ncia x,<\/b><\/span><\/span><\/span> muito pr\u00f3xima da <\/b><\/span><\/span><\/span>posi\u00e7\u00e3o de<\/b><\/span><\/span><\/span> <\/b>equil\u00edbrio 0<\/b><\/span><\/span><\/span>, tal que <\/b><\/span><\/span><\/span>x\/D << 1<\/b><\/span><\/span><\/span> a esfera passar\u00e1 a <\/b><\/span><\/span><\/span>oscilar de MHS, em torno de 0, cuja pulsa\u00e7\u00e3o \u00e9<\/b><\/span><\/span><\/span>, em <\/b><\/span><\/span><\/span>rad\/s,<\/b><\/span><\/span><\/span> igual a<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

07-(AFA – 015\/016)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Um <\/b><\/span><\/span><\/span>cilindro adiab\u00e1tico vertical<\/b><\/span><\/span><\/span> foi <\/b><\/span><\/span><\/span>dividido <\/b><\/span><\/span><\/span>em <\/b><\/span><\/span><\/span>duas partes<\/b><\/span><\/span><\/span> por um <\/b><\/span><\/span><\/span>\u00eambolo de 6,0 kg de massa<\/b><\/span><\/span><\/span> que pode deslizar <\/b><\/span><\/span><\/span>sem atrito.<\/b><\/span><\/span><\/span><\/b><\/p>\n

Na <\/b><\/span><\/span><\/span>parte superior<\/b><\/span><\/span><\/span>, fez-se <\/b><\/span><\/span><\/span>v\u00e1cuo<\/b><\/span><\/span><\/span> e na <\/b><\/span><\/span><\/span>inferior <\/b><\/span><\/span><\/span>foram <\/b><\/span><\/span><\/span>colocados 2 mols de um g\u00e1s ideal monoat\u00f4mico.<\/b><\/span><\/span><\/span> Um <\/b><\/span><\/span><\/span>resistor<\/b><\/span><\/span><\/span> de resist\u00eancia el\u00e9trica \u00f4hmica <\/b><\/span><\/span><\/span>R igual a 1 \u2126<\/b><\/span><\/span><\/span> \u00e9 colocado no <\/b><\/span><\/span><\/span>interior do g\u00e1s<\/b><\/span><\/span><\/span> e ligado a um <\/b><\/span><\/span><\/span>gerador el\u00e9trico<\/b><\/span><\/span><\/span> que fornece uma <\/b><\/span><\/span><\/span>corrente el\u00e9trica i, constante, de 400 mA,<\/b><\/span><\/span><\/span> conforme ilustrado na figura abaixo.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Fechando-se a chave Ch durante 12,5 min<\/b><\/span><\/span><\/span>, o \u00eambolo <\/b><\/span><\/span><\/span>desloca-se 80 cm numa expans\u00e3o isob\u00e1rica<\/b><\/span><\/span><\/span> de um <\/b><\/span><\/span><\/span>estado de equil\u00edbrio para outro.<\/b><\/span><\/span><\/span><\/p>\n

Nessas condi\u00e7\u00f5es, a <\/b><\/span><\/span><\/span>varia\u00e7\u00e3o da temperatura do g\u00e1s foi, em \u00b0C,<\/b><\/span><\/span><\/span> de<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

08-(AFA – 015\/016)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

O <\/b><\/span><\/span><\/span>lado EF<\/b><\/span><\/span><\/span> de uma <\/b><\/span><\/span><\/span>espira<\/b><\/span><\/span><\/span> condutora quadrada indeform\u00e1vel, de <\/b><\/span><\/span><\/span>massa m,<\/b><\/span><\/span><\/span> \u00e9 preso a uma <\/b><\/span><\/span><\/span>mola ideal<\/b><\/span><\/span><\/span> e <\/b><\/span><\/span><\/span>n\u00e3o condutora<\/b><\/span><\/span><\/span>, de <\/b><\/span><\/span><\/span>constante el\u00e1stica K.<\/b><\/span><\/span><\/span><\/b><\/p>\n

Na <\/b><\/span><\/span><\/span>posi\u00e7\u00e3o de equil\u00edbrio<\/b><\/span><\/span><\/span>, o <\/b><\/span><\/span><\/span>plano da espira<\/b><\/span><\/span><\/span> fica paralelo ao <\/b><\/span><\/span><\/span>campo magn\u00e9tico B gerado por um \u00edm\u00e3<\/b><\/span><\/span><\/span> em <\/b><\/span><\/span><\/span>forma de U,<\/b><\/span><\/span><\/span> conforme ilustra a figura abaixo.<\/b><\/span><\/span><\/span><\/p>\n

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

O <\/b><\/span><\/span><\/span>lado CD \u00e9 pivotado<\/b><\/span><\/span><\/span> e pode <\/b><\/span><\/span><\/span>girar <\/b><\/span><\/span><\/span>livremente em torno do <\/b><\/span><\/span><\/span>suporte S<\/b><\/span><\/span><\/span>, que \u00e9 <\/b><\/span><\/span><\/span>posicionado paralelamente <\/b><\/span><\/span><\/span>\u00e0s linhas <\/b><\/span><\/span><\/span>de indu\u00e7\u00e3o do campo magn\u00e9tico.<\/b><\/span><\/span><\/span><\/b><\/p>\n

Considere que a <\/b><\/span><\/span><\/span>espira \u00e9 percorrida por uma corrente el\u00e9trica i,<\/b><\/span><\/span><\/span> cuja <\/b><\/span><\/span><\/span>intensidade <\/b><\/span><\/span><\/span>varia <\/b><\/span><\/span><\/span>senoidalmente<\/b><\/span><\/span><\/span>, em fun\u00e7\u00e3o do <\/b><\/span><\/span><\/span>tempo t,<\/b><\/span><\/span><\/span> conforme indicado no gr\u00e1fico acima.<\/b><\/span><\/span><\/span><\/p>\n

Nessas condi\u00e7\u00f5es<\/b><\/span><\/span><\/span>, <\/b><\/span><\/span><\/span>pode-se afirmar<\/b><\/span><\/span><\/span> que a<\/b><\/span><\/span><\/span><\/p>\n

A)<\/b><\/span><\/span><\/span> <\/b>espira<\/b><\/span><\/span><\/span> oscilar\u00e1 em <\/b><\/span><\/span><\/span>MHS,<\/b><\/span><\/span><\/span> com frequ\u00eancia igual a <\/b><\/span><\/span><\/span>1\/t<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sub><\/span><\/b><\/p>\n

B)<\/b><\/span><\/span><\/span> <\/b>espira <\/b><\/span><\/span><\/span>permanecer\u00e1 <\/b><\/span><\/span><\/span>na sua posi\u00e7\u00e3o original de equil\u00edbrio<\/b><\/span><\/span><\/span><\/b><\/p>\n

C) mola<\/b><\/span><\/span><\/span> apresentar\u00e1 uma <\/b><\/span><\/span><\/span>deforma\u00e7\u00e3o m\u00e1xima dada por Bil\/mgK<\/b><\/span><\/span><\/span><\/p>\n

D)<\/b><\/span><\/span><\/span> <\/b>mola <\/b><\/span><\/span><\/span>apresentar\u00e1 uma <\/b><\/span><\/span><\/span>deforma\u00e7\u00e3o m\u00e1xima<\/b><\/span><\/span><\/span> dada <\/b><\/span><\/span><\/span>por (Bil + mg)\/K<\/b><\/span><\/span><\/span><\/p>\n

09-(AFA – 015\/016)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Tr\u00eas p\u00eandulos simples 1, 2 e 3<\/b><\/span><\/span><\/span> <\/b>que <\/b><\/span><\/span><\/span>oscilam em MHS<\/b><\/span><\/span><\/span> possuem <\/b><\/span><\/span><\/span>massas <\/b><\/span><\/span><\/span>respectivamente iguais a <\/b><\/span><\/span><\/span>m,<\/b><\/span><\/span><\/span> <\/b>2m e 3m<\/b><\/span><\/span><\/span> s\u00e3o mostrados na figura abaixo.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Os <\/b><\/span><\/span><\/span>fios<\/b><\/span><\/span><\/span> que sustentam as massas s\u00e3o <\/b><\/span><\/span><\/span>ideais, inextens\u00edveis<\/b><\/span><\/span><\/span> e possuem <\/b><\/span><\/span><\/span>comprimento<\/b><\/span><\/span><\/span> respectivamente <\/b><\/span><\/span><\/span>L<\/b><\/span><\/span><\/span>1<\/b><\/span><\/span><\/sub><\/span> , L<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sub><\/span> e L<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sub><\/span>.<\/b><\/span><\/span><\/span><\/b><\/p>\n

Para <\/b><\/span><\/span><\/span>cada um dos p\u00eandulos<\/b><\/span><\/span><\/span> registrou-se a <\/b><\/span><\/span><\/span>posi\u00e7\u00e3o (x), em metro, em fun\u00e7\u00e3o do tempo (t), em<\/b><\/span><\/span><\/span> <\/b>segundo,<\/b><\/span><\/span><\/span> e os <\/b><\/span><\/span><\/span>gr\u00e1ficos <\/b><\/span><\/span><\/span>desses registros s\u00e3o apresentados nas figuras 1, 2 e 3 abaixo.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Considerando a <\/b><\/span><\/span><\/span>inexist\u00eancia de atritos<\/b><\/span><\/span><\/span> e que a <\/b><\/span><\/span><\/span>acelera\u00e7\u00e3o da gravidade seja g = \u03c0<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span> m\/s<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span> , \u00e9 <\/b><\/span><\/span><\/span>correto afirmar que<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

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

Academia da For\u00e7a A\u00e9rea\u00a0(AFA)\u00a0\u00e9 um estabelecimento de ensino em n\u00edvel superior da\u00a0For\u00e7a A\u00e9rea Brasileira,situado em\u00a0Pirassununga,\u00a0Estado de S\u00e3o Paulo\u00a0e reconhecido pelo\u00a0Minist\u00e9rio da Educa\u00e7\u00e3o. Integra o sistema de\u00a0forma\u00e7\u00e3o e aperfei\u00e7oamento\u00a0de pessoal do\u00a0Comando da Aeron\u00e1utica\u00a0(COMAER)e est\u00e1 subordinada ao Departamento de Ensino\u00a0(DEPENS) da\u00a0For\u00e7a A\u00e9rea Brasileira\u00a0(FAB.Tem como finalidade a forma\u00e7\u00e3o de oficiais da ativa para os quadros de\u00a0aviadores, intendentes\u00a0e de infantaria da FAB. \u00c9 considerada<\/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-1517","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/1517","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=1517"}],"version-history":[{"count":2,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/1517\/revisions"}],"predecessor-version":[{"id":1526,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/1517\/revisions\/1526"}],"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=1517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}