{"id":2723,"date":"2017-02-07T03:49:44","date_gmt":"2017-02-07T03:49:44","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=2723"},"modified":"2024-07-15T15:26:33","modified_gmt":"2024-07-15T15:26:33","slug":"fgv-2017","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/universidades-2017\/fgv-2017\/","title":{"rendered":"FGV 2017"},"content":{"rendered":"

\"FGV\"<\/h3>\n

A Funda\u00e7\u00e3o Get\u00falio Vargas FGV \u00e9 uma institui\u00e7\u00e3o privada brasileira de ensino, pesquisa e extens\u00e3o. Foi fundada em 1944, com apoio inicial da ONU, com o objetivo inicial de preparar o pessoal qualificado para a administra\u00e7\u00e3o p\u00fablica do Brasil<\/b><\/span><\/span><\/span><\/p>\n

Pelo segundo ano consecutivo, a FGV aparece em primeiro lugar no ranking das institui\u00e7\u00f5es que mais influenciam pol\u00edticas p\u00fablicas e a sociedade na Am\u00e9rica Latina e Caribe.<\/b><\/span><\/span><\/span><\/p>\n

A Funda\u00e7\u00e3o Getulio Vargas conta com oito Escolas, dois institutos, seis diretorias, quatro centros de pesquisa e uma \u00e1rea de pesquisa aplicada, al\u00e9m da Editora FGV e de um Sistema de Bibliotecas que compreende as bibliotecas da FGV no Rio de Janeiro, em S\u00e3o Paulo e em Bras\u00edlia. Na \u00e1rea de ensino, a FGV oferece cursos de gradua\u00e7\u00e3o, p\u00f3s-gradua\u00e7\u00e3o e educa\u00e7\u00e3o executiva (presencial, customizada e a dist\u00e2ncia).<\/b><\/span><\/span><\/span><\/p>\n

As unidades e escolas da FGV s\u00e3o refer\u00eancia nas \u00e1reas de Administra\u00e7\u00e3o, Direito, Economia, Hist\u00f3ria, Ci\u00eancias Sociais e Matem\u00e1tica Aplicada.<\/b><\/span><\/span><\/span><\/p>\n

A Funda\u00e7\u00e3o Getulio Vargas conta com oito Escolas, dois institutos, seis diretorias, quatro centros de pesquisa e uma \u00e1rea de pesquisa aplicada, al\u00e9m da Editora FGV e de um Sistema de Bibliotecas que compreende as bibliotecas da FGV no Rio de Janeiro, em S\u00e3o Paulo e em Bras\u00edlia. Na \u00e1rea de ensino, a FGV oferece cursos de gradua\u00e7\u00e3o, p\u00f3s-gradua\u00e7\u00e3o e educa\u00e7\u00e3o executiva (presencial, customizada e a dist\u00e2ncia<\/b><\/span><\/span><\/span>)<\/b><\/span><\/span><\/span><\/p>\n

01-(FGV-SP-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

O <\/b><\/span><\/span><\/span>gr\u00e1fico hor\u00e1rio da posi\u00e7\u00e3o (S), <\/b><\/span><\/span><\/span>em <\/b><\/span><\/span><\/span>fun\u00e7\u00e3o do tempo (t), <\/b><\/span><\/span><\/span>descreve, <\/b><\/span><\/span><\/span>qualitativamente, o deslocamento de um ve\u00edculo sobre uma trajet\u00f3ria. <\/b><\/span><\/span><\/span>\"\"<\/p>\n

As curvas, nos trechos A, B e D, <\/b><\/span><\/span><\/span>s\u00e3o <\/b><\/span><\/span><\/span>arcos de par\u00e1bola <\/b><\/span><\/span><\/span>cujos <\/b><\/span><\/span><\/span>v\u00e9rtices est\u00e3o presentes no gr\u00e1fico.<\/b><\/span><\/span><\/span><\/p>\n

Analisando o gr\u00e1fico<\/b><\/span><\/span><\/span>, \u00e9 <\/b><\/span><\/span><\/span>correto <\/b><\/span><\/span><\/span>concluir que<\/b><\/span><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span><\/span>a <\/b><\/span><\/span><\/span>trajet\u00f3ria <\/b><\/span><\/span><\/span>por onde o ve\u00edculo se move <\/b><\/span><\/span><\/span>\u00e9 sinuosa nos trechos A, B e D e retil\u00ednea no trecho C.<\/b><\/span><\/span><\/span><\/p>\n

(B) <\/b><\/span><\/span><\/span>a <\/b><\/span><\/span><\/span>trajet\u00f3ria <\/b><\/span><\/span><\/span>por onde o ve\u00edculo se move <\/b><\/span><\/span><\/span>\u00e9 toda retil\u00ednea, mas com lombada em B e valetas em A e D.<\/b><\/span><\/span><\/span><\/p>\n

(C) <\/b><\/span><\/span><\/span>o <\/b><\/span><\/span><\/span>trecho B <\/b><\/span><\/span><\/span>\u00e9 percorrido em <\/b><\/span><\/span><\/span>movimento uniformemente desacelerado e retr\u00f3grado.<\/b><\/span><\/span><\/span><\/p>\n

(D) nos trechos A e D, <\/b><\/span><\/span><\/span>o ve\u00edculo se desloca em <\/b><\/span><\/span><\/span>movimentos uniformemente acelerados com velocidade inicial nula.<\/b><\/span><\/span><\/span><\/p>\n

(E) <\/b><\/span><\/span><\/span>a <\/b><\/span><\/span><\/span>velocidade escalar <\/b><\/span><\/span><\/span>do ve\u00edculo <\/b><\/span><\/span><\/span>no trecho C \u00e9 constante e n\u00e3o nula<\/b><\/span><\/span><\/span>, sendo <\/b><\/span><\/span><\/span>vari\u00e1vel nos outros trechos.<\/b><\/span><\/span><\/span><\/p>\n

02-(FGV-SP-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

A <\/b><\/span><\/span><\/span>nave \u201cNew Horizons\u201d, <\/b><\/span><\/span><\/span>cuja <\/b><\/span><\/span><\/span>foto <\/b><\/span><\/span><\/span>\u00e9 apresentada a seguir, <\/b><\/span><\/span><\/span>partiu do Cabo Canaveral <\/b><\/span><\/span><\/span>em janeiro de 2006 e <\/b><\/span><\/span><\/span>chegou bem perto de Plut\u00e3o <\/b><\/span><\/span><\/span>em julho de 2015.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Foram <\/b><\/span><\/span><\/span>mais de 9 anos no espa\u00e7o<\/b><\/span><\/span><\/span>, voando a <\/b><\/span><\/span><\/span>21 km\/s. <\/b><\/span><\/span><\/span>\u00c9 uma <\/b><\/span><\/span><\/span>velocidade muito alta para nossos padr\u00f5es aqui na Terra, <\/b><\/span><\/span><\/span>mas muito <\/b><\/span><\/span><\/span>baixa <\/b><\/span><\/span><\/span>se <\/b><\/span><\/span><\/span>comparada aos 300 000 km\/s da velocidade da luz no v\u00e1cuo.<\/b><\/span><\/span><\/span> (<\/b><\/span><\/span><\/span>http:\/\/goo.gl\/oeSWn<\/b><\/span><\/span><\/a>) <\/b><\/span><\/span><\/span><\/p>\n

Considere uma nave <\/b><\/span><\/span><\/span>que <\/b><\/span><\/span><\/span>possa voar a uma velocidade igual a 80% da velocidade da luz <\/b><\/span><\/span><\/span>e cuja <\/b><\/span><\/span><\/span>viagem dure 9 anos para n\u00f3s, <\/b><\/span><\/span><\/span>observadores <\/b><\/span><\/span><\/span>localizados na Terra. <\/b><\/span><\/span><\/span><\/p>\n

Para um <\/b><\/span><\/span><\/span>astronauta no interior dessa nave, tal viagem duraria <\/b><\/span><\/span><\/span>cerca de<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

03-(FGV-SP-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Uma part\u00edcula eletrizada <\/b><\/span><\/span><\/span>de <\/b><\/span><\/span><\/span>massa m <\/b><\/span><\/span><\/span>gira no interior de um <\/b><\/span><\/span><\/span>campo magn\u00e9tico uniforme <\/b><\/span><\/span><\/span>descrevendo um <\/b><\/span><\/span><\/span>movimento circular uniforme de raio R e frequ\u00eancia f. <\/b><\/span><\/span><\/span>Ent\u00e3o um <\/b><\/span><\/span><\/span>sistema de n part\u00edculas iguais a essa, <\/b><\/span><\/span><\/span>girando nas <\/b><\/span><\/span><\/span>mesmas condi\u00e7\u00f5es, estar\u00e1 dotado de uma energia cin\u00e9tica<\/b><\/span><\/span><\/span> dada por <\/b><\/span><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span><\/span>2.\"\"<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>.f<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>.n.m.R<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span><\/p>\n

(B) <\/b><\/span><\/span><\/span>2.\"\"<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>.f<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>.n.m\/R<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span><\/p>\n

(C) <\/b><\/span><\/span><\/span>2.\"\"<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>.f<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>.n\/m.R<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span><\/p>\n

(D) <\/b><\/span><\/span><\/span>n.m\/2.\"\"<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>.f<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>.R<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span> <\/b><\/p>\n

(E) <\/b><\/span><\/span><\/span>n.m.R<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>\/2.\"\"<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>.f<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span> <\/b><\/p>\n

04-(FGV-SP-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Os <\/b><\/span><\/span><\/span>Jogos Ol\u00edmpicos rec\u00e9m-realizados no Rio de Janeiro<\/b><\/span><\/span><\/span> promoveram uma verdadeira <\/b><\/span><\/span><\/span>festa esportiva, <\/b><\/span><\/span><\/span>acompanhada pelo mundo inteiro. <\/b><\/span><\/span><\/span><\/p>\n

O <\/b><\/span><\/span><\/span>salto em altura <\/b><\/span><\/span><\/span>foi uma das modalidades de atletismo que <\/b><\/span><\/span><\/span>mais chamou a aten\u00e7\u00e3o, <\/b><\/span><\/span><\/span>porque o <\/b><\/span><\/span><\/span>recorde mundial est\u00e1 com o atleta cubano Javier Sotomayor<\/b><\/span><\/span><\/span> desde 1993, quando, em Salamanca, ele <\/b><\/span><\/span><\/span>atingiu a altura de 2,45 m, marca que ningu\u00e9m, nem ele mesmo, em competi\u00e7\u00f5es posteriores, <\/b><\/span><\/span><\/span>conseguiria superar. A <\/b><\/span><\/span><\/span>foto <\/b><\/span><\/span><\/span>a seguir mostra o atleta em <\/b><\/span><\/span><\/span>pleno salto.<\/b><\/span><\/span><\/span>\"\"<\/p>\n

Considere que, <\/b><\/span><\/span><\/span>antes do salto, <\/b><\/span><\/span><\/span>o <\/b><\/span><\/span><\/span>centro de massa desse atleta estava a 1,0 m do solo; <\/b><\/span><\/span><\/span>no <\/b><\/span><\/span><\/span>ponto<\/b><\/span><\/span><\/span> mais <\/b><\/span><\/span><\/span>alto do salto, seu corpo estava totalmente na horizontal<\/b><\/span><\/span><\/span> e ali <\/b><\/span><\/span><\/span>sua velocidade era de 2.\"\" m\/s;<\/b><\/span><\/span><\/span> a <\/b><\/span><\/span><\/span>acelera\u00e7\u00e3o da gravidade \u00e9 10 m\/s<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>; e <\/b><\/span><\/span><\/span>n\u00e3o houve interfer\u00eancias passivas<\/b><\/span><\/span><\/span>. <\/b><\/span><\/span><\/span><\/p>\n

Para <\/b><\/span><\/span><\/span>atingir a altura recorde, <\/b><\/span><\/span><\/span>ele <\/b><\/span><\/span><\/span>deve ter partido do solo a uma velocidade inicial, <\/b><\/span><\/span><\/span>em m\/s, de<\/b><\/span><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span><\/span>7,0.<\/b><\/span><\/span><\/span><\/p>\n

(B) <\/b><\/span><\/span><\/span>6,8.<\/b><\/span><\/span><\/span><\/p>\n

(C) <\/b><\/span><\/span><\/span>6,6.<\/b><\/span><\/span><\/span><\/p>\n

(D) <\/b><\/span><\/span><\/span>6,4.<\/b><\/span><\/span><\/span><\/p>\n

(E) <\/b><\/span><\/span><\/span>6,2.<\/b><\/span><\/span><\/span><\/p>\n

05-(FGV-SP-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Johannes Kepler<\/b><\/span><\/span><\/span> (1571-1630) foi um <\/b><\/span><\/span><\/span>cientista dedicado ao estudo do sistema solar.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Uma <\/b><\/span><\/span><\/span>das suas leis <\/b><\/span><\/span><\/span>enuncia que as \u00f3rbitas dos planetas, em torno do Sol, s\u00e3o el\u00edpticas, <\/b><\/span><\/span><\/span>com o <\/b><\/span><\/span><\/span>Sol situado em um dos focos dessas elipses. <\/b><\/span><\/span><\/span><\/p>\n

Uma das <\/b><\/span><\/span><\/span>consequ\u00eancias dessa lei resulta na varia\u00e7\u00e3o <\/b><\/span><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span><\/span>do <\/b><\/span><\/span><\/span>m\u00f3dulo da acelera\u00e7\u00e3o da gravidade <\/b><\/span><\/span><\/span>na superf\u00edcie dos planetas. <\/b><\/span><\/span><\/span><\/p>\n

(B) <\/b><\/span><\/span><\/span>da <\/b><\/span><\/span><\/span>quantidade de mat\u00e9ria gasosa presente na atmosfera <\/b><\/span><\/span><\/span>dos planetas. <\/b><\/span><\/span><\/span><\/p>\n

(C) <\/b><\/span><\/span><\/span>da <\/b><\/span><\/span><\/span>dura\u00e7\u00e3o do dia e da noite<\/b><\/span><\/span><\/span> em cada planeta. <\/b><\/span><\/span><\/span><\/p>\n

(D) <\/b><\/span><\/span><\/span>da <\/b><\/span><\/span><\/span>dura\u00e7\u00e3o do ano <\/b><\/span><\/span><\/span>de cada planeta.<\/b><\/span><\/span><\/span><\/p>\n

(E) <\/b><\/span><\/span><\/span>da <\/b><\/span><\/span><\/span>velocidade orbital de cada planeta <\/b><\/span><\/span><\/span>em torno do Sol.<\/b><\/span><\/span><\/span><\/p>\n

06-(FGV-SP-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

07-(FGV-SP-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Um <\/b><\/span><\/span><\/span>bloco met\u00e1lico, maci\u00e7o, homog\u00eaneo, de capacidade t\u00e9rmica C,<\/b><\/span><\/span><\/span> \u00e9 feito de um <\/b><\/span><\/span><\/span>material de <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

coeficiente de dilata\u00e7\u00e3o linear <\/b><\/span><\/span><\/span>\u03b1<\/b><\/span><\/span><\/span> e ocupa um volume <\/b><\/span><\/span><\/span>V<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sub><\/span> <\/b>\u00e0 temperatura ambiente. <\/b><\/span><\/span><\/span><\/p>\n

Ele \u00e9 <\/b><\/span><\/span><\/span>colocado no interior de um forno quente <\/b><\/span><\/span><\/span>e <\/b><\/span><\/span><\/span>recebe uma quantidade de calor Q <\/b><\/span><\/span><\/span>at\u00e9 entrar em <\/b><\/span><\/span><\/span>equil\u00edbrio t\u00e9rmico com o forno sem sofrer mudan\u00e7a de estado f\u00edsico. <\/b><\/span><\/span><\/span><\/p>\n

Como <\/b><\/span><\/span><\/span>consequ\u00eancia, seu volume sofre uma dilata\u00e7\u00e3o \u2206V. <\/b><\/span><\/span><\/span><\/p>\n

Tal dilata\u00e7\u00e3o \u00e9 diretamente proporcional a V<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sub><\/span>,<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

08-(FGV-SP-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

A <\/b><\/span><\/span><\/span>figura a seguir ilustra tr\u00eas cilindros s\u00f3lidos maci\u00e7os e homog\u00eaneos<\/b><\/span><\/span><\/span>, de <\/b><\/span><\/span><\/span>mesma \u00e1rea da<\/b><\/span><\/span><\/span>\"\"<\/p>\n

base e altura (volumes iguais), <\/b><\/span><\/span><\/span>em <\/b><\/span><\/span><\/span>equil\u00edbrio em um l\u00edquido. <\/b><\/span><\/span><\/span><\/p>\n

O <\/b><\/span><\/span><\/span>cilindro A est\u00e1 completamente submerso, sem tocar no fundo do recipiente,<\/b><\/span><\/span><\/span> o <\/b><\/span><\/span><\/span>cilindro B<\/b><\/span><\/span><\/span> est\u00e1 com <\/b><\/span><\/span><\/span>metade de seu volume emerso, enquanto o cilindro C apresenta 1\/3 de seu volume abaixo da superf\u00edcie livre do l\u00edquido.<\/b><\/span><\/span><\/span><\/p>\n

Sobre <\/b><\/span><\/span><\/span>essa situa\u00e7\u00e3o, \u00e9 correto afirmar <\/b><\/span><\/span><\/span>que <\/b><\/span><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span><\/span>a <\/b><\/span><\/span><\/span>densidade do cilindro A \u00e9 maior do que a do l\u00edquido<\/b><\/span><\/span><\/span>, pois ele est\u00e1 <\/b><\/span><\/span><\/span>completamente submerso.<\/b><\/span><\/span><\/span><\/p>\n

(B) <\/b><\/span><\/span><\/span>a <\/b><\/span><\/span><\/span>densidade do cilindro B \u00e9 igual ao dobro da do l\u00edquido<\/b><\/span><\/span><\/span>, pois ele <\/b><\/span><\/span><\/span>desloca metade do seu volume no l\u00edquido<\/b><\/span><\/span><\/span>. <\/b><\/span><\/span><\/span><\/p>\n

(C) <\/b><\/span><\/span><\/span>a <\/b><\/span><\/span><\/span>densidade do cilindro A \u00e9 maior do que a do cilindro B, <\/b><\/span><\/span><\/span>que \u00e9 <\/b><\/span><\/span><\/span>maior do que a do cilindro C,<\/b><\/span><\/span><\/span> em <\/b><\/span><\/span><\/span>raz\u00e3o dos volumes deslocados no l\u00edquido. <\/b><\/span><\/span><\/span><\/p>\n

(D) <\/b><\/span><\/span><\/span>pelo fato de estar <\/b><\/span><\/span><\/span>completamente submerso, o peso do cilindro A \u00e9 maior do que o empuxo sobre ele e maior que os pesos de B e de C. <\/b><\/span><\/span><\/span><\/p>\n

(E) <\/b><\/span><\/span><\/span>o <\/b><\/span><\/span><\/span>peso do cilindro C \u00e9 menor do que o empuxo sobre ele porque apenas 1\/3 de seu volume est\u00e1 submerso.<\/b><\/span><\/span><\/span><\/p>\n

09-(FGV-SP-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Ao <\/b><\/span><\/span><\/span>ser admitido no interior da c\u00e2mara de combust\u00e3o <\/b><\/span><\/span><\/span>do <\/b><\/span><\/span><\/span>motor de uma motocicleta<\/b><\/span><\/span><\/span>, o<\/b><\/span><\/span><\/span><\/p>\n

vapor de etanol chega a ocupar o volume de 120 cm<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> sob press\u00e3o de 1,0 atm e temperatura de <\/b><\/span><\/span><\/span>\"\"<\/p>\n

127 <\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>C.<\/b><\/span><\/span><\/span><\/p>\n

Ap\u00f3s o tempo de admiss\u00e3o, o pist\u00e3o sobe, <\/b><\/span><\/span><\/span>o <\/b><\/span><\/span><\/span>volume <\/b><\/span><\/span><\/span>ocupado por essa mistura <\/b><\/span><\/span><\/span>diminui para 20 cm<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>, <\/b><\/span><\/span><\/span>e a <\/b><\/span><\/span><\/span>press\u00e3o aumenta para 12 atm. <\/b><\/span><\/span><\/span><\/p>\n

Considerando a <\/b><\/span><\/span><\/span>mistura um g\u00e1s ideal<\/b><\/span><\/span><\/span> e <\/b><\/span><\/span><\/span>desprezando perdas de calor devido \u00e0 r\u00e1pida compress\u00e3o<\/b><\/span><\/span><\/span>, a <\/b><\/span><\/span><\/span>temperatura do g\u00e1s resultante desse processo no interior da c\u00e2mara <\/b><\/span><\/span><\/span>passa a ser, <\/b><\/span><\/span><\/span>em <\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>C, <\/b><\/span><\/span><\/span>de<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

10-(FGV-SP-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

As <\/b><\/span><\/span><\/span>figuras a seguir <\/b><\/span><\/span><\/span>representam <\/b><\/span><\/span><\/span>uma foto<\/b><\/span><\/span><\/span> e um <\/b><\/span><\/span><\/span>esquema<\/b><\/span><\/span><\/span> em <\/b><\/span><\/span><\/span>que F<\/b><\/span><\/span><\/span>1<\/b><\/span><\/span><\/sub><\/span> e F<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sub><\/span> s\u00e3o fontes de frentes de ondas mec\u00e2nicas planas, coerentes e em fase, oscilando com a frequ\u00eancia de 4,0 Hz.<\/b><\/span><\/span><\/span> <\/b>\"\"<\/p>\n

As <\/b><\/span><\/span><\/span>ondas produzidas<\/b><\/span><\/span><\/span> propagam-se a uma <\/b><\/span><\/span><\/span>velocidade de 2,0 m\/s. <\/b><\/span><\/span><\/span><\/p>\n

Sabe-se que <\/b><\/span><\/span><\/span>D > 2,8 m e que P \u00e9 um ponto vibrante de m\u00e1xima amplitude.<\/b><\/span><\/span><\/span><\/p>\n

Nessas condi\u00e7\u00f5es, o <\/b><\/span><\/span><\/span>menor valor de D <\/b><\/span><\/span><\/span>deve ser <\/b><\/span><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span><\/span>2,9 m. <\/b><\/span><\/span><\/span><\/p>\n

(B) <\/b><\/span><\/span><\/span>3,0 m. <\/b><\/span><\/span><\/span><\/p>\n

(C) <\/b><\/span><\/span><\/span>3,1 m. <\/b><\/span><\/span><\/span><\/p>\n

(D) <\/b><\/span><\/span><\/span>3,2 m <\/b><\/span><\/span><\/span><\/p>\n

(E) <\/b><\/span><\/span><\/span>3,3<\/b><\/span><\/span><\/span><\/p>\n

11-(FGV-SP-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

quest\u00e3o 102 A <\/b><\/span><\/span>fun\u00e7\u00e3o trabalho de certo metal \u00e9 9,94\u00b710\u201319 J. <\/b><\/span><\/span><\/p>\n

Considere a <\/b><\/span><\/span>constante de Planck com o valor 6,63\u00b710<\/b><\/span><\/span>-34<\/b><\/span><\/sup><\/span> J\u00b7s. <\/b><\/span><\/span><\/p>\n

A <\/b><\/span><\/span>frequ\u00eancia m\u00ednima a partir da qual haver\u00e1 efeito fotoel\u00e9trico <\/b><\/span><\/span>sobre <\/b><\/span><\/span>esse metal<\/b><\/span><\/span> \u00e9, em <\/b><\/span><\/span>10<\/b><\/span><\/span>15<\/b><\/span><\/sup><\/span> Hz, <\/b><\/span><\/span>de <\/b><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span>1,1. <\/b><\/span><\/span><\/p>\n

(B) <\/b><\/span><\/span>1,2. <\/b><\/span><\/span><\/p>\n

(C) <\/b><\/span><\/span>1,5. <\/b><\/span><\/span><\/p>\n

(D) <\/b><\/span><\/span>1,7. <\/b><\/span><\/span><\/p>\n

(E) <\/b><\/span><\/span>1,9.<\/b><\/span><\/span><\/p>\n

12-(FGV-SP-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Uma <\/b><\/span><\/span><\/span>garota,<\/b><\/span><\/span><\/span> estudante do ensino m\u00e9dio, <\/b><\/span><\/span><\/span>disp\u00f5e de uma lupa para se entreter.<\/b><\/span><\/span><\/span>\"\"<\/p>\n

Ela <\/b><\/span><\/span><\/span>consegue queimar um ponto de uma folha de papel <\/b><\/span><\/span><\/span>pousada no <\/b><\/span><\/span><\/span>ch\u00e3o horizontal, com sol a pino, mantendo a lupa paralelamente <\/b><\/span><\/span><\/span>\u00e0 folha e a <\/b><\/span><\/span><\/span>uma altura h dela.<\/b><\/span><\/span><\/span><\/p>\n

Desejando obter a imagem direita <\/b><\/span><\/span><\/span>de uma <\/b><\/span><\/span><\/span>figura desenhada nessa mesma folha, ampliada duas vezes, <\/b><\/span><\/span><\/span>ela <\/b><\/span><\/span><\/span>dever\u00e1 manter <\/b><\/span><\/span><\/span>a <\/b><\/span><\/span><\/span>lupa paralela <\/b><\/span><\/span><\/span>e a uma <\/b><\/span><\/span><\/span>dist\u00e2ncia da folha igual a <\/b><\/span><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span><\/span>3h. <\/b><\/span><\/span><\/span><\/p>\n

(B) <\/b><\/span><\/span><\/span>2h. <\/b><\/span><\/span><\/span><\/p>\n

(C) <\/b><\/span><\/span><\/span>h.<\/b><\/span><\/span><\/span><\/p>\n

(D) <\/b><\/span><\/span><\/span>h\/2<\/b><\/span><\/span><\/span><\/p>\n

(E) <\/b><\/span><\/span><\/span>h\/3<\/b><\/span><\/span><\/span><\/p>\n

13-(FGV-SP-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

A <\/b><\/span><\/span><\/span>usina hidrel\u00e9trica de Itaipu<\/b><\/span><\/span><\/span>, empresa <\/b><\/span><\/span><\/span>binacional<\/b><\/span><\/span><\/span>, localizada na <\/b><\/span><\/span><\/span>fronteira do Brasil com <\/b><\/span><\/span><\/span>o <\/b><\/span><\/span><\/span>Paraguai, tem uma pot\u00eancia instalada de 14 000 MW gerada por 20 unidades de 700 MW cada<\/b><\/span><\/span><\/span>. <\/b><\/span><\/span><\/span><\/p>\n

Essa <\/b><\/span><\/span><\/span>pot\u00eancia \u00e9 distribu\u00edda por 12 linhas de transmiss\u00e3o<\/b><\/span><\/span><\/span> que operam <\/b><\/span><\/span><\/span>sob tens\u00e3o de 500 kV cada.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

A <\/b><\/span><\/span><\/span>energia produzida <\/b><\/span><\/span><\/span>\u00e9 levada at\u00e9 <\/b><\/span><\/span><\/span>as cidades por cabos condutores de corrente el\u00e9trica, <\/b><\/span><\/span><\/span>sustentados por <\/b><\/span><\/span><\/span>altas torres que podem ser vistas quando se viaja pelas estradas.<\/b><\/span><\/span><\/span><\/p>\n

A <\/b><\/span><\/span><\/span>intensidade da corrente el\u00e9trica atrav\u00e9s desses cabos \u00e9, em kA, mais pr\u00f3xima <\/b><\/span><\/span><\/span>de<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

14-(FGV-SP-017)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

quest\u00e3o 105 As <\/b><\/span><\/span><\/span>figuras representam dois exemplos de solenoides<\/b><\/span><\/span><\/span>, dispositivos que <\/b><\/span><\/span><\/span>consistem<\/b><\/span><\/span><\/span> em <\/b><\/span><\/span><\/span>um fio condutor enrolado. <\/b><\/span><\/span><\/span><\/p>\n

Tal enrolamento pode se dar em torno de um n\u00facleo <\/b><\/span><\/span><\/span>feito de <\/b><\/span><\/span><\/span>algum material <\/b><\/span><\/span><\/span>ou, simplesmente, <\/b><\/span><\/span><\/span>no ar. Cada volta de fio<\/b><\/span><\/span><\/span> \u00e9 denominada <\/b><\/span><\/span><\/span>espira.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

A <\/b><\/span><\/span><\/span>passagem de uma corrente el\u00e9trica atrav\u00e9s desse fio cria, <\/b><\/span><\/span><\/span>no <\/b><\/span><\/span><\/span>interior do solenoide, <\/b><\/span><\/span><\/span>um <\/b><\/span><\/span><\/span>campo magn\u00e9tico <\/b><\/span><\/span><\/span>cuja intensidade <\/b><\/span><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span><\/span>\u00e9 <\/b><\/span><\/span><\/span>diretamente proporcional ao quadrado da intensidade da corrente el\u00e9trica e ao comprimento do solenoide. <\/b><\/span><\/span><\/span><\/p>\n

(B)<\/b><\/span><\/span><\/span> \u00e9 <\/b><\/span><\/span><\/span>diretamente proporcional \u00e0 densidade das espiras, <\/b><\/span><\/span><\/span>ou seja, ao <\/b><\/span><\/span><\/span>n\u00famero de espiras por unidade de comprimento<\/b><\/span><\/span><\/span>. <\/b><\/span><\/span><\/span><\/p>\n

(C) <\/b><\/span><\/span><\/span>\u00e9 <\/b><\/span><\/span><\/span>diretamente proporcional ao n\u00famero total de espiras do solenoide <\/b><\/span><\/span><\/span>e ao <\/b><\/span><\/span><\/span>seu comprimento. <\/b><\/span><\/span><\/span><\/p>\n

(D) independe da dist\u00e2ncia entre as espiras, <\/b><\/span><\/span><\/span>mas <\/b><\/span><\/span><\/span>depende do material de que \u00e9 feito o n\u00facleo.<\/b><\/span><\/span><\/span><\/p>\n

(E) <\/b><\/span><\/span><\/span>\u00e9 a <\/b><\/span><\/span><\/span>maior poss\u00edvel quando o material componente do n\u00facleo \u00e9 diamagn\u00e9tico ou paramagn\u00e9tico.<\/b><\/span><\/span><\/span><\/p>\n

 <\/p>\n

Confira as resolu\u00e7\u00f5es e gabaritos<\/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 Funda\u00e7\u00e3o Get\u00falio Vargas FGV \u00e9 uma institui\u00e7\u00e3o privada brasileira de ensino, pesquisa e extens\u00e3o. Foi fundada em 1944, com apoio inicial da ONU, com o objetivo inicial de preparar o pessoal qualificado para a administra\u00e7\u00e3o p\u00fablica do Brasil Pelo segundo ano consecutivo, a FGV aparece em primeiro lugar no ranking das institui\u00e7\u00f5es que mais influenciam pol\u00edticas p\u00fablicas e a<\/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-2723","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/2723","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=2723"}],"version-history":[{"count":5,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/2723\/revisions"}],"predecessor-version":[{"id":10450,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/2723\/revisions\/10450"}],"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=2723"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}