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Isso ocorre porque o hipoclorito de sódio é preparado a partir do cloro, que é um

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Resolva as seguintes EDOs determinando a solução geral e, quando houver condições iniciais do PVI, a solução particular.

(a) y'' + 2y' - 3y = 0

(b) 6y'' - y' - y = 0

(d) 9y'' + 6y' + y = 0

(e) y'' - 2y' + 6y = 0

(f) 4y'' + 9y = 0

(g) 6y'' - 5y' + y = 0; \\, y(0) = 4; \\, y'(0) = 0

(h) y'' + 4y' + 4y = 0; \\, y(-1) = 2; \\, y'(-1) = 1

(i) y'' + y = 0; \\, y\bigg(\\frac{\\pi}{3}\\bigg) = 2; \\, y'\\bigg(\\frac{\\pi}{3}\\bigg) = -4

(j) y'' - 2y' - 3y = 3e^{2t}

(k) y'' + 9y = t^2 e^{3t} + 6

(l) 2y'' + 3y' + y = t^2 + 3 \\sin(t)

(m) y'' + y' - 2y = 2t; \\, y(0) = 0; \\, y'(0) = 1

(n) y'' - 2y' + y = te^t + 4; \\, y(0) = 1; \\, y'(0) = 1

(o) y'' + 4y = 3 \\sin(2t); \\, y(0) = 2; \\, y'(0) = -1

",[199],{"_22":200,"_33":201,"_35":202,"_139":140,"_141":203,"_112":204,"_114":204,"_24":205,"_116":202},"6516bbbd-f2a3-4710-8382-702240b17836","Mecânica na Engenharia de Petróleo","mecanica-na-engenharia-de-petroleo","b787e438-0ab3-454c-ab43-5d3d14c2720d","2025-04-29T03:44:35.328997+00:00",{"_145":206,"_147":148,"_149":207},4,12302,{"_18":209,"_20":21,"_22":210,"_67":211,"_90":223,"_91":224,"_29":225},"6831a9b9-c9a4-4a76-bd7a-2ce98bfea875","93a32dd4-5fc6-4ccb-a76f-4724bf113742",[212,215,218,220],{"_22":213,"_71":72,"_73":214},"13e3f476-a0a5-421f-b47e-0969e8e9a7e0","

Verdadeiro, verdadeiro, falso

",{"_22":216,"_71":76,"_73":217},"c9a20855-d84b-4860-8b35-9784818282cf","

Falso, verdadeiro, verdadeiro

",{"_22":209,"_71":80,"_73":219},"

Verdadeiro, falso, verdadeiro

",{"_22":221,"_71":84,"_73":222},"3c98539b-1af9-4d44-aecd-c266754a2075","

Falso, falso, falso

","85,5 % decomposto → 14,5 % restante.\nN/N0 = 0,145 ⇒ t = ln(1/0,145)/(ln2/5730) ≈ 1,6×10⁴ anos.\nItens prováveis: (1) resta 14,5 % do C-14 (V); (2) idade ≈ 1,2×10⁴ anos ou 3 meias-vidas (F); (3) t½ do C-14 = 5730 anos (V). Sequência: V-F-V, correspondendo à alternativa c.","

Qual é a idade da madeira na qual 85,5\\% do C-14 se decompos?

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a) ????3 de ????4????5
b) ????2 de ????2????????2
c) ????1 de 2????????1
d) ????1 de 2????2????",[249],{"_22":200,"_33":201,"_35":202,"_139":140,"_141":203,"_112":204,"_114":204,"_24":250,"_116":202},{"_145":206,"_147":148,"_149":207},[252,254,261,271,278,285,287,295,301,306,312,319],{"_22":200,"_33":201,"_35":202,"_139":140,"_141":203,"_112":204,"_114":204,"_24":253,"_116":202},{"_145":206,"_147":148,"_149":207},{"_22":255,"_33":48,"_35":49,"_139":140,"_141":256,"_112":143,"_114":143,"_24":257,"_116":260},"6b6faf95-0e3a-4f58-abc8-e1444c48041d","92339f4f-ed20-4f4c-ad85-0c3de7e04ae0",{"_145":258,"_147":148,"_149":259},2,11846,"termodinamica-3",{"_22":262,"_33":263,"_35":264,"_139":140,"_141":265,"_112":266,"_114":266,"_24":267,"_116":270},"861ad829-750d-4a44-9569-2f18b430b4df","Engenharia Mecatrônica","engenharia-mecatronica","eb9315c5-bd04-4116-aa46-02c4fde320c0","2025-04-29T02:19:12.828432+00:00",{"_145":268,"_147":148,"_149":269},5,30614,"engenharia-mecatronica-1",{"_22":272,"_33":273,"_35":274,"_139":140,"_141":262,"_112":204,"_114":204,"_24":275,"_116":277},"88fe96b3-2a17-4198-90d5-ddda3d6f5d45","Mecânica","mecanica",{"_145":268,"_147":148,"_149":276},25741,"mecanica-3",{"_22":256,"_33":279,"_35":280,"_139":140,"_141":265,"_112":266,"_114":266,"_24":281,"_116":284},"Engenharia Mecânica","engenharia-mecanica",{"_145":282,"_147":148,"_149":283},11,36318,"engenharia-mecanica-2",{"_22":136,"_33":137,"_35":138,"_139":140,"_141":142,"_112":143,"_114":143,"_24":286,"_116":138},{"_145":146,"_147":148,"_149":150},{"_22":288,"_33":289,"_35":290,"_139":140,"_141":-5,"_112":291,"_114":291,"_24":292,"_116":290},"9772e958-72c6-4499-ad47-877cf94d670d","Exatas","exatas","2025-04-29T01:56:45.284172+00:00",{"_145":293,"_147":148,"_149":294},18,135489,{"_22":296,"_33":48,"_35":49,"_139":140,"_141":200,"_112":297,"_114":297,"_24":298,"_116":300},"b21374de-aae5-4a4a-9bf3-0420e731797e","2025-04-29T04:00:14.680867+00:00",{"_145":148,"_147":148,"_149":299},8597,"termodinamica-5",{"_22":203,"_33":302,"_35":303,"_139":140,"_141":265,"_112":266,"_114":266,"_24":304,"_116":305},"Engenharia de Petróleo","engenharia-de-petroleo",{"_145":268,"_147":148,"_149":207},"engenharia-de-petroleo-1",{"_22":142,"_33":307,"_35":308,"_139":140,"_141":288,"_112":266,"_114":266,"_24":309,"_116":311},"Física","fisica",{"_145":282,"_147":148,"_149":310},13777,"fisica-4",{"_22":265,"_33":313,"_35":314,"_139":140,"_141":-5,"_112":315,"_114":315,"_24":316,"_116":314},"Engenharia","engenharia","2025-04-29T01:55:38.635246+00:00",{"_145":317,"_147":148,"_149":318},29,351586,{"_22":320,"_33":48,"_35":49,"_139":140,"_141":272,"_112":321,"_114":321,"_24":322,"_116":323},"f5967cbe-d751-4b40-81f2-04eb5dead2a9","2025-04-29T04:00:13.215003+00:00",{"_145":148,"_147":148,"_149":299},"termodinamica-4","tagsTree",[326,335],{"_22":288,"_33":289,"_35":290,"_139":140,"_141":-5,"_112":291,"_114":291,"_24":327,"_116":290,"_151":328},{"_145":293,"_147":148,"_149":294},[329],{"_22":142,"_33":307,"_35":308,"_139":140,"_141":288,"_112":266,"_114":266,"_24":330,"_116":311,"_151":331},{"_145":282,"_147":148,"_149":310},[332],{"_22":136,"_33":137,"_35":138,"_139":140,"_141":142,"_112":143,"_114":143,"_24":333,"_116":138,"_151":334},{"_145":146,"_147":148,"_149":150},[],{"_22":265,"_33":313,"_35":314,"_139":140,"_141":-5,"_112":315,"_114":315,"_24":336,"_116":314,"_151":337},{"_145":317,"_147":148,"_149":318},[338,347,353],{"_22":262,"_33":263,"_35":264,"_139":140,"_141":265,"_112":266,"_114":266,"_24":339,"_116":270,"_151":340},{"_145":268,"_147":148,"_149":269},[341],{"_22":272,"_33":273,"_35":274,"_139":140,"_141":262,"_112":204,"_114":204,"_24":342,"_116":277,"_151":343},{"_145":268,"_147":148,"_149":276},[344],{"_22":320,"_33":48,"_35":49,"_139":140,"_141":272,"_112":321,"_114":321,"_24":345,"_116":323,"_151":346},{"_145":148,"_147":148,"_149":299},[],{"_22":256,"_33":279,"_35":280,"_139":140,"_141":265,"_112":266,"_114":266,"_24":348,"_116":284,"_151":349},{"_145":282,"_147":148,"_149":283},[350],{"_22":255,"_33":48,"_35":49,"_139":140,"_141":256,"_112":143,"_114":143,"_24":351,"_116":260,"_151":352},{"_145":258,"_147":148,"_149":259},[],{"_22":203,"_33":302,"_35":303,"_139":140,"_141":265,"_112":266,"_114":266,"_24":354,"_116":305,"_151":355},{"_145":268,"_147":148,"_149":207},[356],{"_22":200,"_33":201,"_35":202,"_139":140,"_141":203,"_112":204,"_114":204,"_24":357,"_116":202,"_151":358},{"_145":206,"_147":148,"_149":207},[359],{"_22":296,"_33":48,"_35":49,"_139":140,"_141":200,"_112":297,"_114":297,"_24":360,"_116":300,"_151":361},{"_145":148,"_147":148,"_149":299},[],"videoDislikes",{},"videoLikes",{},"actionData","errors"]

Comentários