{"id":3898,"date":"2018-04-30T14:49:44","date_gmt":"2018-04-30T14:49:44","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=3898"},"modified":"2024-07-15T14:54:50","modified_gmt":"2024-07-15T14:54:50","slug":"unifor-2018","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/universidades-2018\/unifor-2018\/","title":{"rendered":"UNIFOR 2018"},"content":{"rendered":"

UNIFOR-2018<\/b><\/span><\/span><\/span><\/p>\n

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

A\u00a0Universidade de Fortaleza\u00a0(UNIFOR) \u00e9 uma\u00a0institui\u00e7\u00e3o de ensino superior\u00a0brasileira\u00a0e\u00a0entidade privada filantr\u00f3pica\u00a0localizada no Bairro Edson Queiroz em\u00a0Fortaleza\u00a0no estado do\u00a0Cear\u00e1, na\u00a0Av. Washington Soares.<\/b><\/span><\/span><\/span><\/p>\n

Surgiu em\u00a01973, fundada pelo grupo\u00a0 Edson Queiroz, por iniciativa do pr\u00f3prio\u00a0Edson Queiroz.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

01-(UNIFOR-CE-018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Um <\/b><\/span><\/span><\/span>ciclista est\u00e1 pedalando <\/b><\/span><\/span><\/span>em uma <\/b><\/span><\/span><\/span>bicicleta com transmiss\u00e3o simples,<\/b><\/span><\/span><\/span> como a <\/b><\/span><\/span><\/span>mostrada na fig<\/b><\/span><\/span><\/span>ura abaixo. A <\/b><\/span><\/span><\/span>coroa da bicicleta possui 44 dentes <\/b><\/span><\/span><\/span>e a <\/b><\/span><\/span><\/span>catraca 11 dentes igualmente espa\u00e7ados em ambas. <\/b><\/span><\/span><\/span>A <\/b><\/span><\/span><\/span>cada volta que a catraca d\u00e1, a roda da bicicleta tamb\u00e9m d\u00e1 uma volta. <\/b><\/span><\/span><\/span><\/p>\n

Em um <\/b><\/span><\/span><\/span>dado momento do passeio, a pedivela <\/b><\/span><\/span><\/span>(a pe\u00e7a que cont\u00e9m os pedais e a qual a coroa est\u00e1 presa) est\u00e1 <\/b><\/span><\/span><\/span>fazendo 30 rota\u00e7\u00f5es por minuto.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Sabendo que a <\/b><\/span><\/span><\/span>circunfer\u00eancia da roda \u00e9 de 2 metros, qual \u00e9<\/b><\/span><\/span><\/span> a <\/b><\/span><\/span><\/span>velocidade em km\/h <\/b><\/span><\/span><\/span>da bicicleta nesse instante?<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

02-(UNIFOR-CE-018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Em um <\/b><\/span><\/span><\/span>dia de exerc\u00edcios <\/b><\/span><\/span><\/span>voc\u00ea decide <\/b><\/span><\/span><\/span>dividir sua caminhada da seguinte forma:<\/b><\/span><\/span><\/span> <\/b><\/p>\n

\u25cf Na ida, voc\u00ea caminha 100m a velocidade constante de 2m\/s <\/b><\/span><\/span><\/span>e <\/b><\/span><\/span><\/span>depois caminha mais 100m com velocidade de 3 m\/s.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

\u25cf Na volta, voc\u00ea caminha com a velocidade de 2m\/s por 40s e com a velocidade 3 m\/s por 40 s<\/b><\/span><\/span><\/span>. <\/b><\/span><\/span><\/span><\/p>\n

\u00c9 <\/b><\/span><\/span><\/span>correto afirmar<\/b><\/span><\/span><\/span> que a <\/b><\/span><\/span><\/span>velocidade m\u00e9dia <\/b><\/span><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span><\/span>na ida \u00e9 2,4 m\/s. <\/b><\/span><\/span><\/span><\/p>\n

(B) <\/b><\/span><\/span><\/span>na volta \u00e9 3,0 m\/s. <\/b><\/span><\/span><\/span><\/p>\n

(C) <\/b><\/span><\/span><\/span>na ida \u00e9 5,0 m\/s. <\/b><\/span><\/span><\/span><\/p>\n

(D) <\/b><\/span><\/span><\/span>na volta \u00e9 5,0 m\/s. <\/b><\/span><\/span><\/span><\/p>\n

(E) <\/b><\/span><\/span><\/span>em todo o percurso \u00e9 de 5,0 m\/s.<\/b><\/span><\/span><\/span><\/p>\n

03-(UNIFOR-CE-018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Observa-se<\/b><\/span><\/span><\/span> um <\/b><\/span><\/span><\/span>ciclo termodin\u00e2mico <\/b><\/span><\/span><\/span>de um <\/b><\/span><\/span><\/span>g\u00e1s ideal apresentado na figura a seguir<\/b><\/span><\/span><\/span>. <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Com <\/b><\/span><\/span><\/span>rela\u00e7\u00e3o ao comportamento do g\u00e1s, <\/b><\/span><\/span><\/span>\u00e9 <\/b><\/span><\/span><\/span>correto afirmar <\/b><\/span><\/span><\/span>que <\/b><\/span><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span><\/span>no processo BC a temperatura \u00e9 constante. <\/b><\/span><\/span><\/span><\/p>\n

(B) <\/b><\/span><\/span><\/span>o trabalho realizado no processo AB \u00e9 nulo. <\/b><\/span><\/span><\/span><\/p>\n

(C) <\/b><\/span><\/span><\/span>o calor transferido no processo DA \u00e9 nulo.<\/b><\/span><\/span><\/span><\/p>\n

(D) <\/b><\/span><\/span><\/span>o trabalho realizado no processo CD \u00e9 negativo. <\/b><\/span><\/span><\/span><\/p>\n

(E) <\/b><\/span><\/span><\/span>a quantidade de calor no processo CD \u00e9 igual a varia\u00e7\u00e3o da energia interna.<\/b><\/span><\/span><\/span><\/p>\n

04-(UNIFOR-CE-018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

A <\/b><\/span><\/span><\/span>figura a seguir representa um trecho de uma onda <\/b><\/span><\/span><\/span>que se <\/b><\/span><\/span><\/span>propaga a uma velocidade de 150 m\/s.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Com <\/b><\/span><\/span><\/span>rela\u00e7\u00e3o a essa figura, qual item representa corretamente a amplitude (A), o comprimento de onda (\"\"<\/b><\/span><\/span><\/span>) e o per\u00edodo (T)?<\/b><\/span><\/span><\/span><\/p>\n

(A) <\/b><\/span><\/span><\/span>A = 1,1 cm, <\/b><\/span><\/span><\/span>\u0001<\/b><\/span><\/span><\/span> = 2 cm e T = 1.10<\/b><\/span><\/span><\/span>-4<\/b><\/span><\/span><\/sup><\/span> s<\/b><\/span><\/span><\/span><\/p>\n

(B) <\/b><\/span><\/span><\/span>A = 1,1 cm, <\/b><\/span><\/span><\/span>\u0001<\/b><\/span><\/span><\/span> = 2 cm e T = 2.10<\/b><\/span><\/span><\/span>-4<\/b><\/span><\/span><\/sup><\/span> s<\/b><\/span><\/span><\/span><\/p>\n

(C) <\/b><\/span><\/span><\/span>A = 1,1 cm, <\/b><\/span><\/span><\/span>\u0001<\/b><\/span><\/span><\/span> = 3 cm e T = 2.10<\/b><\/span><\/span><\/span>-4<\/b><\/span><\/span><\/sup><\/span> s<\/b><\/span><\/span><\/span><\/p>\n

(D) <\/b><\/span><\/span><\/span>A = 2,2 cm, <\/b><\/span><\/span><\/span>\u0001<\/b><\/span><\/span><\/span> = 1 cm e T = 1.10<\/b><\/span><\/span><\/span>-4<\/b><\/span><\/span><\/sup><\/span> s<\/b><\/span><\/span><\/span><\/p>\n

(E) <\/b><\/span><\/span><\/span>A = 2,2 cm, <\/b><\/span><\/span><\/span>\u0001<\/b><\/span><\/span><\/span> = 2 cm e T = 1.10<\/b><\/span><\/span><\/span>-4<\/b><\/span><\/span><\/sup><\/span> s<\/b><\/span><\/span><\/span><\/p>\n

05-(UNIFOR-CE-018)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Na <\/b><\/span><\/span><\/span>figura abaixo, <\/b><\/span><\/span><\/span>observam-se <\/b><\/span><\/span><\/span>dois fios met\u00e1licos paralelos separados<\/b><\/span><\/span><\/span> por uma <\/b><\/span><\/span><\/span>dist\u00e2ncia de r = 2 m, <\/b><\/span><\/span><\/span>no v\u00e1cuo.<\/b><\/span><\/span><\/span><\/p>\n

A <\/b><\/span><\/span><\/span>corrente el\u00e9trica em cada fio \u00e9 i = 0,60 A da esquerda para a direita.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

A <\/b><\/span><\/span><\/span>dire\u00e7\u00e3o e a intensidade da for\u00e7a <\/b><\/span><\/span><\/span>que <\/b><\/span><\/span><\/span>age<\/b><\/span><\/span><\/span> no <\/b><\/span><\/span><\/span>comprimento L = 3,0 m de um dos fios <\/b><\/span><\/span><\/span>( \"\"<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sub><\/span> = 4\"\".10<\/b><\/span><\/span><\/span>-7<\/b><\/span><\/span><\/sup><\/span> unidades do SI) <\/b><\/span><\/span><\/span>\u00e9<\/b><\/span><\/span><\/span><\/p>\n

(A) F = 0,54.10<\/b><\/span><\/span><\/span>-7<\/b><\/span><\/span><\/sup><\/span> a for\u00e7a \u00e9 de <\/b><\/span><\/span><\/span>repuls\u00e3o<\/b><\/span><\/span><\/span> entre os dois fios.<\/b><\/span><\/span><\/span><\/p>\n

(B) F = 0,54.10<\/b><\/span><\/span><\/span>-7<\/b><\/span><\/span><\/sup><\/span> <\/b>a for\u00e7a \u00e9 de <\/b><\/span><\/span><\/span>atra\u00e7\u00e3o <\/b><\/span><\/span><\/span>entre os dois fios.<\/b><\/span><\/span><\/span><\/p>\n

(C) F = 1,08.10<\/b><\/span><\/span><\/span>-7<\/b><\/span><\/span><\/sup><\/span> <\/b>a for\u00e7a \u00e9 de <\/b><\/span><\/span><\/span>repuls\u00e3o <\/b><\/span><\/span><\/span>entre os dois fios.<\/b><\/span><\/span><\/span><\/p>\n

(D) F = 1,08.10<\/b><\/span><\/span><\/span>-7<\/b><\/span><\/span><\/sup><\/span> <\/b>a for\u00e7a \u00e9 de <\/b><\/span><\/span><\/span>atra\u00e7\u00e3o <\/b><\/span><\/span><\/span>entre os dois fios.<\/b><\/span><\/span><\/span><\/p>\n

(E) <\/b><\/span><\/span><\/span>A <\/b><\/span><\/span><\/span>for\u00e7a <\/b><\/span><\/span><\/span>entre os dois fios <\/b><\/span><\/span><\/span>\u00e9 nula.<\/b><\/span><\/span><\/span><\/p>\n

 <\/p>\n

Confira a resolu\u00e7\u00e3o comentada<\/a><\/span><\/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":"

UNIFOR-2018 A\u00a0Universidade de Fortaleza\u00a0(UNIFOR) \u00e9 uma\u00a0institui\u00e7\u00e3o de ensino superior\u00a0brasileira\u00a0e\u00a0entidade privada filantr\u00f3pica\u00a0localizada no Bairro Edson Queiroz em\u00a0Fortaleza\u00a0no estado do\u00a0Cear\u00e1, na\u00a0Av. Washington Soares. Surgiu em\u00a01973, fundada pelo grupo\u00a0 Edson Queiroz, por iniciativa do pr\u00f3prio\u00a0Edson Queiroz. 01-(UNIFOR-CE-018) Um ciclista est\u00e1 pedalando em uma bicicleta com transmiss\u00e3o simples, como a mostrada na figura abaixo. A coroa da bicicleta possui 44 dentes e a catraca<\/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-3898","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3898","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=3898"}],"version-history":[{"count":4,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3898\/revisions"}],"predecessor-version":[{"id":10412,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3898\/revisions\/10412"}],"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=3898"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}