{"id":3913,"date":"2018-04-30T15:49:30","date_gmt":"2018-04-30T15:49:30","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=3913"},"modified":"2024-07-15T14:40:40","modified_gmt":"2024-07-15T14:40:40","slug":"uerj-2a-fase-2018","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/universidades-2018\/uerj-2a-fase-2018\/","title":{"rendered":"UERJ 2\u00aa Fase – 2018"},"content":{"rendered":"

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A universidade UERJ est\u00e1 dentre uma das 35 melhores da Am\u00e9rica Latina Segundo QS World University Rankings de 2013, e pode ser conferido no site<\/b><\/span><\/span><\/span><\/p>\n

O seu vestibular \u00e9 o mais disputado do Rio De Janeiro, uma vez que o restante das faculdades do estado n\u00e3o possuem mais vestibular pr\u00f3prio, pois aderiram ao\u00a0<\/b><\/span><\/span><\/span>Exame Nacional do Ensino M\u00e9dio<\/b><\/span><\/span><\/span><\/a>. Os exames de admiss\u00e3o ocorrem anualmente e s\u00e3o divididos em duas partes: a primeira ocorre geralmente entre junho e agosto e \u00e9 chamada de Exame de Qualifica\u00e7\u00e3o. Essa fase \u00e9 marcada por uma prova m\u00faltipla-escolha, com 60 quest\u00f5es. A segunda, \u00e9 restrita aos candidatos que passaram pela primeira fase e \u00e9 chamada de Exame Discursivo, onde o candidato deve realizar duas provas de conhecimento especifico, portugu\u00eas instrumental e reda\u00e7\u00e3o. Sem exce\u00e7\u00f5es esta fase ocorre em\u00a0<\/b><\/span><\/span><\/span>dezembro<\/b><\/span><\/span><\/span><\/a>. As inscri\u00e7\u00f5es para o vestibular s\u00e3o abertas na maioria das vezes entre\u00a0<\/b><\/span><\/span><\/span>mar\u00e7o<\/b><\/span><\/span><\/span><\/a>\u00a0e\u00a0<\/b><\/span><\/span><\/span>abril<\/b><\/span><\/span><\/span><\/a>.<\/b><\/span><\/span><\/span><\/p>\n

2<\/b><\/span><\/span><\/span>a<\/b><\/span><\/span><\/sup><\/span> fase \u2013 Exame Discursivo<\/b><\/span><\/span><\/span><\/p>\n

PARA SEUS C\u00c1LCULOS, SEMPRE QUE NECESS\u00c1RIO, UTILIZE OS DADOS E AS F\u00d3RMULAS A SEGUIR.<\/span><\/span><\/span><\/p>\n

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01-(UERJ-RJ\/018)<\/b><\/span><\/span><\/span><\/p>\n

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Em uma <\/b><\/span><\/span><\/span>academia,<\/b><\/span><\/span><\/span> a <\/b><\/span><\/span><\/span>acelera\u00e7\u00e3o de uma esteira <\/b><\/span><\/span><\/span>e a <\/b><\/span><\/span><\/span>for\u00e7a exercida sobre ela <\/b><\/span><\/span><\/span>foram <\/b><\/span><\/span><\/span>medidas<\/b><\/span><\/span><\/span> ao <\/b><\/span><\/span><\/span>longo de 10 s. <\/b><\/span><\/span><\/span>Os <\/b><\/span><\/span><\/span>resultados est\u00e3o representados nos gr\u00e1ficos abaixo. <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Com <\/b><\/span><\/span><\/span>base nos gr\u00e1ficos<\/b><\/span><\/span><\/span>, determine, em <\/b><\/span><\/span><\/span>quilogramas, a massa da esteira.<\/b><\/span><\/span><\/span><\/p>\n

02-(UERJ-RJ\/018)<\/b><\/span><\/span><\/span><\/p>\n

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03-(UERJ-RJ\/018)<\/b><\/span><\/span><\/span><\/p>\n

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Em <\/b><\/span><\/span><\/span>fun\u00e7\u00e3o de suas caracter\u00edsticas,<\/b><\/span><\/span><\/span> uma <\/b><\/span><\/span><\/span>lente convergente, <\/b><\/span><\/span><\/span>ao ser <\/b><\/span><\/span><\/span>exposta \u00e0 luz do Sol, gera<\/b><\/span><\/span><\/span> uma <\/b><\/span><\/span><\/span>concentra\u00e7\u00e3o de luz a 60 cm do seu centro \u00f3ptico<\/b><\/span><\/span><\/span>, como <\/b><\/span><\/span><\/span>ilustra a imagem<\/b><\/span><\/span><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

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Considere que <\/b><\/span><\/span><\/span>um objeto \u00e9 colocado a 180 cm do centro \u00f3ptico dessa lente <\/b><\/span><\/span><\/span>para que <\/b><\/span><\/span><\/span>sua imagem <\/b><\/span><\/span><\/span>seja <\/b><\/span><\/span><\/span>projetada com nitidez sobre uma tela. <\/b><\/span><\/span><\/span><\/p>\n

Calcule <\/b><\/span><\/span><\/span>a <\/b><\/span><\/span><\/span>dist\u00e2ncia, em cent\u00edmetros, <\/b><\/span><\/span><\/span>em que a <\/b><\/span><\/span><\/span>tela deve ser colocada,<\/b><\/span><\/span><\/span> a <\/b><\/span><\/span><\/span>partir do centro \u00f3ptico <\/b><\/span><\/span><\/span>da lente, para <\/b><\/span><\/span><\/span>obten\u00e7\u00e3o dessa imagem.<\/b><\/span><\/span><\/span><\/p>\n

04-(UERJ-RJ\/018)<\/b><\/span><\/span><\/span><\/p>\n

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Em uma <\/b><\/span><\/span><\/span>antena de transmiss\u00e3o,<\/b><\/span><\/span><\/span> <\/b>el\u00e9trons vibram <\/b><\/span><\/span><\/span>a uma <\/b><\/span><\/span><\/span>frequ\u00eancia de 3.10<\/b><\/span><\/span><\/span>6<\/b><\/span><\/span><\/sup><\/span> Hz. Essa taxa <\/b><\/span><\/span><\/span>produz uma <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

combina\u00e7\u00e3o <\/b><\/span><\/span><\/span>de <\/b><\/span><\/span><\/span>campos el\u00e9tricos e magn\u00e9ticos vari\u00e1veis <\/b><\/span><\/span><\/span>que se <\/b><\/span><\/span><\/span>propagam como ondas \u00e0 velocidade da luz. <\/b><\/span><\/span><\/span><\/p>\n

No <\/b><\/span><\/span><\/span>diagrama abaixo,<\/b><\/span><\/span><\/span> est\u00e3o <\/b><\/span><\/span><\/span>relacionados tipos de onda <\/b><\/span><\/span><\/span>e seus <\/b><\/span><\/span><\/span>respectivos comprimentos. <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Com <\/b><\/span><\/span><\/span>base nessas informa\u00e7\u00f5es,<\/b><\/span><\/span><\/span> <\/b>identifique<\/b><\/span><\/span><\/span> o <\/b><\/span><\/span><\/span>tipo de onda <\/b><\/span><\/span><\/span>que est\u00e1 sendo <\/b><\/span><\/span><\/span>transmitida pela antena <\/b><\/span><\/span><\/span>na <\/b><\/span><\/span><\/span>frequ\u00eancia mencionada,<\/b><\/span><\/span><\/span> <\/b>justificando sua resposta <\/b><\/span><\/span><\/span>a partir dos <\/b><\/span><\/span><\/span>c\u00e1lculos.<\/b><\/span><\/span><\/span><\/p>\n

05-(UERJ-RJ\/018)<\/b><\/span><\/span><\/span><\/p>\n

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06-(UERJ-RJ\/018)<\/b><\/span><\/span><\/span><\/p>\n

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07-(UERJ-RJ\/018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

O <\/b><\/span><\/span><\/span>gr\u00e1fico<\/b><\/span><\/span><\/span> a seguir <\/b><\/span><\/span><\/span>indica a varia\u00e7\u00e3o da for\u00e7a resultante F <\/b><\/span><\/span><\/span>que <\/b><\/span><\/span><\/span>atua em um objeto de massa m, <\/b><\/span><\/span><\/span>em<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

uma <\/b><\/span><\/span><\/span>trajet\u00f3ria retil\u00ednea <\/b><\/span><\/span><\/span>ao longo de um <\/b><\/span><\/span><\/span>deslocamento de 12 m.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

Calcule o <\/b><\/span><\/span><\/span>trabalho, em joules, realizado por F <\/b><\/span><\/span><\/span>nesse <\/b><\/span><\/span><\/span>deslocamento.<\/b><\/span><\/span><\/span><\/p>\n

08-(UERJ-RJ\/018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

O <\/b><\/span><\/span><\/span>esquema abaixo representa <\/b><\/span><\/span><\/span>as <\/b><\/span><\/span><\/span>esferas met\u00e1licas A e B,<\/b><\/span><\/span><\/span> <\/b>ambas<\/b><\/span><\/span><\/span> com <\/b><\/span><\/span><\/span>massas de 10<\/b><\/span><\/span><\/span>-3<\/b><\/span><\/span><\/sup><\/span> kg<\/b><\/span><\/span><\/span> e <\/b><\/span><\/span><\/span>carga el\u00e9trica de m\u00f3dulo igual a 10<\/b><\/span><\/span><\/span>-6<\/b><\/span><\/span><\/sup><\/span> C. <\/b><\/span><\/span><\/span><\/p>\n

As <\/b><\/span><\/span><\/span>esferas est\u00e3o presas<\/b><\/span><\/span><\/span> por <\/b><\/span><\/span><\/span>fios isolantes a suportes, <\/b><\/span><\/span><\/span>e a <\/b><\/span><\/span><\/span>dist\u00e2ncia entre elas \u00e9 de 1 m.<\/b><\/span><\/span><\/span><\/p>\n

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Admita<\/b><\/span><\/span><\/span> que o <\/b><\/span><\/span><\/span>fio que prende a esfera A foi cortado <\/b><\/span><\/span><\/span>e que a <\/b><\/span><\/span><\/span>for\u00e7a resultante sobre essa esfera corresponde apenas \u00e0 for\u00e7a de intera\u00e7\u00e3o el\u00e9trica. <\/b><\/span><\/span><\/span><\/p>\n

Calcule <\/b><\/span><\/span><\/span>a <\/b><\/span><\/span><\/span>acelera\u00e7\u00e3o, em m\/s<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>, <\/b><\/span><\/span><\/span>adquirida pela <\/b><\/span><\/span><\/span>esfera A imediatamente ap\u00f3s o corte do fio.<\/b><\/span><\/span><\/span><\/p>\n

09-(UERJ-RJ\/018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Considere a <\/b><\/span><\/span><\/span>exist\u00eancia <\/b><\/span><\/span><\/span>de um <\/b><\/span><\/span><\/span>planeta homog\u00eaneo, <\/b><\/span><\/span><\/span>situado em <\/b><\/span><\/span><\/span>uma gal\u00e1xia distante, <\/b><\/span><\/span><\/span>e as <\/b><\/span><\/span><\/span>informa\u00e7\u00f5es sobre seus dois sat\u00e9lites apresentadas<\/b><\/span><\/span><\/span> na <\/b><\/span><\/span><\/span>tabela.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

\"\"<\/p>\n

Sabe-se <\/b><\/span><\/span><\/span>que o <\/b><\/span><\/span><\/span>movimento de X e Y ocorre exclusivamente sob a\u00e7\u00e3o da for\u00e7a gravitacional<\/b><\/span><\/span><\/span> do <\/b><\/span><\/span><\/span>planeta.<\/b><\/span><\/span><\/span> Determine a <\/b><\/span><\/span><\/span>raz\u00e3o \"\"<\/b><\/span><\/span><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

10-(UERJ-RJ\/018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Para uma <\/b><\/span><\/span><\/span>an\u00e1lise f\u00edsica,<\/b><\/span><\/span><\/span> um <\/b><\/span><\/span><\/span>laborat\u00f3rio utiliza um sistema composto <\/b><\/span><\/span><\/span>por um <\/b><\/span><\/span><\/span>term\u00f4metro, <\/b><\/span><\/span><\/span>um <\/b><\/span><\/span><\/span>aquecedor<\/b><\/span><\/span><\/span>, um <\/b><\/span><\/span><\/span>recipiente com ladr\u00e3o <\/b><\/span><\/span><\/span>e <\/b><\/span><\/span><\/span>outro recipiente menor acoplado a este. <\/b><\/span><\/span><\/span><\/p>\n

O <\/b><\/span><\/span><\/span>primeiro recipiente <\/b><\/span><\/span><\/span>\u00e9 <\/b><\/span><\/span><\/span>preenchido at\u00e9 a altura do ladr\u00e3o com 400 cm<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> <\/b>de um <\/b><\/span><\/span><\/span>determinado l\u00edquido, <\/b><\/span><\/span><\/span>conforme <\/b><\/span><\/span><\/span>ilustrado <\/b><\/span><\/span><\/span>abaixo.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

O <\/b><\/span><\/span><\/span>sistema, mantido<\/b><\/span><\/span><\/span> em <\/b><\/span><\/span><\/span>temperatura ambiente de 25 \u00baC <\/b><\/span><\/span><\/span>\u00e9 ent\u00e3o <\/b><\/span><\/span><\/span>aquecido at\u00e9 65 \u00baC.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

Como em geral os <\/b><\/span><\/span><\/span>l\u00edquidos se dilatam mais que os s\u00f3lidos, <\/b><\/span><\/span><\/span>verifica-se o <\/b><\/span><\/span><\/span>extravasamento de parte do l\u00edquido, que fica armazenado no recipiente menor.<\/b><\/span><\/span><\/span><\/p>\n

Ap\u00f3s o sistema <\/b><\/span><\/span><\/span>voltar \u00e0 temperatura inicial, <\/b><\/span><\/span><\/span>o <\/b><\/span><\/span><\/span>volume de l\u00edquido extravasado corresponde a 3,2 cm<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>. <\/b><\/span><\/span><\/span>Observe <\/b><\/span><\/span><\/span>a ilustra\u00e7\u00e3o:<\/b><\/span><\/span><\/span> <\/b><\/p>\n

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

Sabendo <\/b><\/span><\/span><\/span>que o <\/b><\/span><\/span><\/span>coeficiente de dilata\u00e7\u00e3o volum\u00e9trica <\/b><\/span><\/span><\/span>do <\/b><\/span><\/span><\/span>material <\/b><\/span><\/span><\/span>que <\/b><\/span><\/span><\/span>constitui o recipiente \u00e9 igual 36. 10<\/b><\/span><\/span><\/span>-6<\/b><\/span><\/span><\/sup><\/span> \u00baC<\/b><\/span><\/span><\/span>-1<\/b><\/span><\/span><\/sup><\/span>, <\/b><\/span><\/span><\/span>calcule<\/b><\/span><\/span><\/span> o <\/b><\/span><\/span><\/span>coeficiente de dilata\u00e7\u00e3o do l\u00edquido.<\/b><\/span><\/span><\/span><\/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 universidade UERJ est\u00e1 dentre uma das 35 melhores da Am\u00e9rica Latina Segundo QS World University Rankings de 2013, e pode ser conferido no site O seu vestibular \u00e9 o mais disputado do Rio De Janeiro, uma vez que o restante das faculdades do estado n\u00e3o possuem mais vestibular pr\u00f3prio, pois aderiram ao\u00a0Exame Nacional do Ensino M\u00e9dio. Os exames de<\/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-3913","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3913","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=3913"}],"version-history":[{"count":4,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3913\/revisions"}],"predecessor-version":[{"id":10391,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3913\/revisions\/10391"}],"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=3913"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}