{"id":1813,"date":"2020-08-03T20:00:17","date_gmt":"2020-08-03T23:00:17","guid":{"rendered":"https:\/\/professorpinguim.com.br\/blog\/?p=1813"},"modified":"2023-09-06T07:53:24","modified_gmt":"2023-09-06T10:53:24","slug":"duas-pequenas-esferas-fuvest-2016-2a-fase-questao-de-carga-eletrica","status":"publish","type":"post","link":"https:\/\/professorpinguim.com.br\/blog\/duas-pequenas-esferas-fuvest-2016-2a-fase-questao-de-carga-eletrica\/","title":{"rendered":"Duas pequenas esferas | Fuvest 2016 2\u00aa Fase | Quest\u00e3o de Carga El\u00e9trica"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Fala, pessoal! Vamos para uma quest\u00e3o da 2\u00aa fase da Fuvest 2016? Acompanhem:<\/p>\n\n\n\n<!--more-->\n\n\n\n<h3 class=\"wp-block-heading\">Quest\u00e3o 1:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Duas pequenas esferas, E1 e E2, feitas de materiais isolantes diferentes, inicialmente neutras, s\u00e3o atritadas uma na outra durante 5 s e ficam eletrizadas. Em seguida, as esferas s\u00e3o afastadas e mantidas a uma dist\u00e2ncia de 30 cm, muito maior que seus raios. A esfera E1 ficou com carga el\u00e9trica positiva de 0,8 nC. Determine <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a) a diferen\u00e7a N entre o n\u00famero de pr\u00f3tons e o de el\u00e9trons da esfera E1, ap\u00f3s o atrito; <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">b) o sinal e o valor da carga el\u00e9trica Q de E2, ap\u00f3s o atrito; <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">c) a corrente el\u00e9trica m\u00e9dia I entre as esferas durante o atrito; <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">d) o m\u00f3dulo da for\u00e7a el\u00e9trica F que atua entre as esferas depois de afastadas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Note e adote: <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1 nC = 10\u20139 C <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Carga do el\u00e9tron = \u20131,6 . 10\u201319 C <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Constante eletrost\u00e1tica: K0 = 9 . 109 N.m2\/C2 <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00e3o h\u00e1 troca de cargas entre cada esfera e o ambiente<\/p>\n\n\n\n<figure class=\"wp-block-embed-youtube aligncenter wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Fuvest 2016 Segunda Fase | Quest\u00e3o 1 | Professor Pinguim | Duas pequenas esferas\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/6sToCu_Akcc?start=103&amp;feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Tem d\u00favidas de como funciona a minha plataforma e a minha metodologia de ensino? <strong><a rel=\"noreferrer noopener\" href=\"https:\/\/conteudo.professorpinguim.com.br\/experimente-plataforma\" target=\"_blank\">Clique aqui<\/a> <\/strong>e acesse gratuitamente os m\u00f3dulos de <strong>Cinem\u00e1tica <\/strong>e <strong>\u00d3ptica<\/strong> do meu <strong>&nbsp;SEMIEXTENSIVO exclusivo para FUVEST, UNICAMP, UNESP E UNIFESP. <\/strong>Tenho certeza que vai mudar a sua vida.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/professorpinguim.com.br\/\"><img fetchpriority=\"high\" decoding=\"async\" width=\"728\" height=\"90\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2020\/07\/BannerBlog_728x90.png\" alt=\"\" class=\"wp-image-1733\" srcset=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2020\/07\/BannerBlog_728x90.png 728w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2020\/07\/BannerBlog_728x90-300x37.png 300w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2020\/07\/BannerBlog_728x90-670x83.png 670w\" sizes=\"(max-width: 728px) 100vw, 728px\" \/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Me acompanhe nas redes sociais: curta a minha&nbsp;<a href=\"https:\/\/www.facebook.com\/professorpinguim\/\"><strong>p\u00e1gina no Facebook<\/strong><\/a><strong>,<\/strong>&nbsp;me&nbsp;siga no&nbsp;<a href=\"https:\/\/www.instagram.com\/professorpinguim\/\"><strong>Instagram<\/strong><\/a><strong>,<\/strong>&nbsp;se inscreva no&nbsp;<a href=\"https:\/\/www.youtube.com\/c\/PinguimV%C3%ADdeoF%C3%ADsica\/?sub_confirmation=1\"><strong>Youtube<\/strong><\/a>&nbsp;e participe do meu canal oficial no&nbsp;<strong><a href=\"http:\/\/professorpinguim.com.br\/telegram\">Telegram<\/a><\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fala, pessoal! Vamos para uma quest\u00e3o da 2\u00aa fase da Fuvest 2016? Acompanhem:<\/p>\n","protected":false},"author":1,"featured_media":1814,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[282],"tags":[249,251,244,250],"class_list":["post-1813","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-exercicios-resolvidos-fuvest","tag-cargas-eletricas-fisica","tag-duas-pequenas-esferas-prova-fuvest","tag-estudar-provas-da-fuvest","tag-prova-fuvest-2016"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.12 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Duas pequenas esferas | Fuvest 2016 2\u00aa Fase | Quest\u00e3o de Carga El\u00e9trica - Professor Pinguim | F\u00edsica<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/professorpinguim.com.br\/blog\/duas-pequenas-esferas-fuvest-2016-2a-fase-questao-de-carga-eletrica\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Duas pequenas esferas | Fuvest 2016 2\u00aa Fase | Quest\u00e3o de Carga El\u00e9trica - Professor Pinguim | F\u00edsica\" \/>\n<meta property=\"og:description\" content=\"Fala, pessoal! 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