{"id":568,"date":"2015-03-05T18:02:13","date_gmt":"2015-03-05T18:02:13","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=568"},"modified":"2024-09-03T13:01:14","modified_gmt":"2024-09-03T13:01:14","slug":"exercicios-resolvidos-da-unicesumar-2015","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/universidades-2015\/exercicios-resolvidos-da-unicesumar-2015\/","title":{"rendered":"Exerc\u00edcios Resolvidos da UniCesumar 2015"},"content":{"rendered":"

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UNICESUMAR<\/b><\/span><\/span><\/span> – Universidade Cesumar<\/b><\/span><\/span><\/span>, \u00e9 um dos centros universit\u00e1rios mantido pela UNICESUMAR – Universidade Cesumar, sediada na cidade de\u00a0<\/b><\/span><\/span><\/span>Maring\u00e1<\/b><\/span><\/span><\/a>, no Estado do <\/b><\/span><\/span><\/span>Paran\u00e1<\/b><\/span><\/span><\/a>.<\/b><\/span><\/span><\/span><\/p>\n

01-(UniCesumar-PR-015)<\/span><\/span><\/span><\/p>\n

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Um <\/b><\/span><\/span><\/span>t\u00e9cnico de eletricidade<\/b><\/span><\/span><\/span> disp\u00f5e de <\/b><\/span><\/span><\/span>diversas l\u00e2mpadas \u00f4hmicas id\u00ea<\/b><\/span><\/span><\/span>nticas nas quais podemos ler as seguintes inscri\u00e7\u00f5es: <\/b><\/span><\/span><\/span>12V \u2013 6W<\/b><\/span><\/span><\/span>. Ele pretende <\/b><\/span><\/span><\/span>associar o maior n\u00famero poss\u00edvel dessas l\u00e2mpadas<\/b><\/span><\/span><\/span> <\/b>em paralelo e lig\u00e1-las a uma fonte de 12V.<\/b><\/span><\/span><\/span> Como precau\u00e7\u00e3o insere, em s\u00e9rie, com a fonte de tens\u00e3o, um <\/b><\/span><\/span><\/span>fus\u00edvel que suporta uma corrente m\u00e1xima de 4A <\/b><\/span><\/span><\/span>a fim de proteger as l\u00e2mpadas.<\/b><\/span><\/span><\/span><\/p>\n

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Ap\u00f3s efetuar alguns c\u00e1lculos, o t\u00e9cnico determina o <\/b><\/span><\/span><\/span>n\u00famero m\u00e1ximo de l\u00e2mpadas<\/b><\/span><\/span><\/span> que ele pode associar em paralelo nesse circuito, <\/b><\/span><\/span><\/span>sem queimar o fus\u00edvel<\/b><\/span><\/span><\/span>. O<\/b><\/span><\/span><\/span>n\u00famero m\u00e1ximo de l\u00e2mpadas<\/b><\/span><\/span><\/span> que ele encontrou foi igual<\/b><\/span><\/span><\/span><\/p>\n

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02-(UniCesumar-PR-015)<\/span><\/span><\/span><\/p>\n

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Uma <\/b><\/span><\/span><\/span>pessoa de altura h <\/b><\/span><\/span><\/span>coloca-se diante de uma <\/b><\/span><\/span><\/span>c\u00e2mara escura de orif\u00edcio<\/b><\/span><\/span><\/span> com o intuito de produzir, na <\/b><\/span><\/span><\/span>face oposta ao orif\u00edcio<\/b><\/span><\/span><\/span> da c\u00e2mara, <\/b><\/span><\/span><\/span>uma imagem que corresponda a tr\u00eas quartos (3\/4) de sua altura.<\/b><\/span><\/span><\/span><\/p>\n

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Sabendo que a <\/b><\/span><\/span><\/span>c\u00e2mara escura tem profundidade d<\/b><\/span><\/span><\/span>, qual ser\u00e1 a <\/b><\/span><\/span><\/span>dist\u00e2ncia entre a pessoa e sua<\/b><\/span><\/span><\/span> imagem?<\/b><\/span><\/span><\/span><\/p>\n

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03-(UniCesumar-PR-015)<\/span><\/span><\/span><\/p>\n

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Um <\/b><\/span><\/span><\/span>g\u00e1s ideal, cuja temperatura inicial \u00e9 de 27\u00baC,<\/b><\/span><\/span><\/span> est\u00e1 armazenado num <\/b><\/span><\/span><\/span>recipiente cil\u00edndrico,<\/b><\/span><\/span><\/span> <\/b>fechado por um \u00eambolo m\u00f3vel<\/b><\/span><\/span><\/span>, e \u00e9 <\/b><\/span><\/span><\/span>aquecido isobaricamente<\/b><\/span><\/span><\/span> at\u00e9 que sua<\/b><\/span><\/span><\/span>temperatura absoluta final<\/b><\/span><\/span><\/span> <\/b>quadruplique.<\/b><\/span><\/span><\/span> Sabe-se que, no interior do recipiente cil\u00edndrico, <\/b><\/span><\/span><\/span>h\u00e1 5 mols<\/b><\/span><\/span><\/span> desse g\u00e1s mantido a uma <\/b><\/span><\/span><\/span>press\u00e3o de 1,23 atm.<\/b><\/span><\/span><\/span> Sendo o valor da<\/b><\/span><\/span><\/span>constante universal dos gases perfeitos igual a 0,082<\/b><\/span><\/span><\/span> <\/b>atm.L.mol<\/b><\/span><\/span><\/span>-1<\/b><\/span><\/span><\/sup><\/span> .K<\/b><\/span><\/span><\/span>-1<\/b><\/span><\/span><\/sup><\/span> , o <\/b><\/span><\/span><\/span>volume final, em litros, desse g\u00e1s ap\u00f3s o aquecimento ser\u00e1 igual a<\/b><\/span><\/span><\/span><\/p>\n

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04-(UniCesumar-PR-015)<\/span><\/span><\/span><\/p>\n

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Uma <\/b><\/span><\/span><\/span>part\u00edcula<\/b><\/span><\/span><\/span> realiza um <\/b><\/span><\/span><\/span>movimento circular e uniforme<\/b><\/span><\/span><\/span> numa trajet\u00f3ria de <\/b><\/span><\/span><\/span>raio (R) igual a 2,5m,<\/b><\/span><\/span><\/span> obedecendo \u00e0 seguinte <\/b><\/span><\/span><\/span>fun\u00e7\u00e3o hor\u00e1ria dos espa\u00e7os lineares: S = 5 + 10t<\/b><\/span><\/span><\/span>, em unidades do <\/b><\/span><\/span><\/span>Sistema Internacional<\/b><\/span><\/span><\/span>. Podemos afirmar que o <\/b><\/span><\/span><\/span>per\u00edodo (T), a frequ\u00eancia (f) do movimento e a acelera\u00e7\u00e3o<\/b><\/span><\/span><\/span> <\/b>centr\u00edpeta (a<\/b><\/span><\/span><\/span>cp<\/b><\/span><\/span><\/sub><\/span>)<\/b><\/span><\/span><\/span> da part\u00edcula <\/b><\/span><\/span><\/span>valem, respectivamente<\/b><\/span><\/span><\/span>, aproximadamente: (Adote \u03c0=3)<\/b><\/span><\/span><\/span><\/p>\n

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05-(UniCesumar-PR-015)<\/span><\/span><\/span><\/p>\n

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Um <\/b><\/span><\/span><\/span>solen\u00f3ide de 30cm de comprimento, contendo 800 espiras e resist\u00eancia el\u00e9trica 7,5\u2126 <\/b><\/span><\/span><\/span>\u00e9 conectado<\/b><\/span><\/span><\/span> a um gerador de for\u00e7a eletromotriz igual a 15 V e resist\u00eancia interna de 2,5<\/b><\/span><\/span><\/span> <\/b>\u2126 <\/b><\/span><\/span><\/span>. Determine, em <\/b><\/span><\/span><\/span>tesla (T),<\/b><\/span><\/span><\/span> o <\/b><\/span><\/span><\/span>m\u00f3dulo do vetor indu\u00e7\u00e3o magn\u00e9tica no interior do solen\u00f3ide<\/b><\/span><\/span><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

Considere a <\/b><\/span><\/span><\/span>permeabilidade magn\u00e9tica do meio que constitui o interior do solen\u00f3ide igual a 4\u03c0.10<\/b><\/span><\/span><\/span>-7<\/b><\/span><\/span><\/sup><\/span> T.m.A<\/b><\/span><\/span><\/span>-1<\/b><\/span><\/span><\/sup><\/span>. <\/b><\/span><\/span><\/span>e adote \u03c0=3.<\/b><\/span><\/span><\/span><\/p>\n

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 <\/p>\n

Confira a Resolu\u00e7\u00e3o Comentada<\/span><\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"

UNICESUMAR – Universidade Cesumar, \u00e9 um dos centros universit\u00e1rios mantido pela UNICESUMAR – Universidade Cesumar, sediada na cidade de\u00a0Maring\u00e1, no Estado do Paran\u00e1. 01-(UniCesumar-PR-015) Um t\u00e9cnico de eletricidade disp\u00f5e de diversas l\u00e2mpadas \u00f4hmicas id\u00eanticas nas quais podemos ler as seguintes inscri\u00e7\u00f5es: 12V \u2013 6W. Ele pretende associar o maior n\u00famero poss\u00edvel dessas l\u00e2mpadas em paralelo e lig\u00e1-las a uma fonte<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":5,"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-568","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/568","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=568"}],"version-history":[{"count":4,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/568\/revisions"}],"predecessor-version":[{"id":917,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/568\/revisions\/917"}],"up":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/5"}],"wp:attachment":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/media?parent=568"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}