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As caldeiras, também chamadas de geradores de vapor, são equipamentos bastante importantes para a geração de energia como calor, de forma direta. Qual o processo energético correto que é utilizado na geração direta de energia para ser utilizada em uma caldeira:

","status","pending_classification","hasRelatedVideo","relatedVideos",[109],{"_110":111,"_129":130,"_51":145,"_164":165,"_181":146},"content",{"_43":112,"_57":113,"_114":-5,"_115":116,"_117":118,"_119":-5,"_45":120,"_123":124,"_125":124,"_126":-5,"_127":128},"17af1394-ae27-4d49-bad0-6dfbc097b00c","Termologia e Termometria","description","content_type_id","1051eee7-c62e-4b2c-9900-77a29fcec080","resource_id","e0ab6092-71a6-4b78-8930-845a08dc3495","user_id",{"_121":122},"external_id","2594","created_at","2025-08-20T12:27:41.608438+00:00","updated_at","content_group_id","slug","termologia-e-termometria","prometheusData",{"_131":132,"_138":139,"_140":141,"_142":143,"_28":144},"provider",{"_43":133,"_134":135,"_136":137},"06f120be-2194-4548-8336-7ba44ffbae14","key","grupo_q_proteus","kind","proteus","reference","b502b486-7b81-4345-a10c-e462c3043183","state","completed","thumbnail_url","https://proteus.grupoq.io/videos/b502b486-7b81-4345-a10c-e462c3043183/thumbnailsthumb.0000000.jpg","https://proteus.grupoq.io/videos/b502b486-7b81-4345-a10c-e462c3043183/levels.m3u8",[146],{"_43":147,"_57":148,"_59":149,"_150":151,"_152":153,"_123":154,"_125":154,"_45":155,"_127":149,"_162":163},"96193fa0-9495-45b2-81cc-b547604354af","Física Térmica - Termologia","fisica-termica-termologia","tag_group_id","c1ce2cf2-b217-4cc7-8182-81c56bd3522d","parent_id","c8ab2a95-fd84-4d6f-ade0-835d34ba00f9","2025-04-29T03:44:27.560682+00:00",{"_156":157,"_158":159,"_160":161},"childrenCount",10,"content_count",0,"question_count",8575,"children",[],"video",{"_43":118,"_13":113,"_114":-5,"_166":159,"_167":168,"_28":-5,"_169":-5,"_131":168,"_170":171,"_142":-5,"_172":-5,"_173":-5,"_174":-5,"_175":-5,"_45":176,"_177":159,"_178":-5,"_104":179,"_123":180,"_125":180},"duration","source_type","prometheus","iframe_url","provider_video_id","a58dea8f-5fbf-4462-bf04-83e715504a2f","format","quality","file_path","file_size",{"_121":122},"views_count","last_played_at","draft","2025-08-19T11:56:22.11908+00:00","tag","similarQuestions",[184,214,232],{"_40":185,"_42":41,"_43":186,"_77":187,"_101":202,"_102":203,"_51":204},"112831da-be9c-458e-94cb-e8292d0dba12","3c0b9441-b878-4896-8bac-fa4ca61e3f13",[188,191,194,197,200],{"_43":189,"_81":82,"_83":190},"265bd71a-6749-41f5-b291-67efd646ca64","y'' + 2y' - 3y = 0",{"_43":192,"_81":87,"_83":193},"6d3c3a1d-8e80-4ff3-b97a-d5b5bca91940","6y'' - y' - y = 0",{"_43":195,"_81":91,"_83":196},"4168ac67-64fd-46ed-a69c-a01dbfcde7ea","y'' - 2y' + y = 0",{"_43":198,"_81":95,"_83":199},"cc7bc8df-6995-4264-ac5a-32ea9b4ed7db","9y'' + 6y' + y = 0",{"_43":185,"_81":99,"_83":201},"y'' - 2y' + 6y = 0","Somente em y''−2y'+6y=0 o polinômio característico r²−2r+6=0 tem Δ<0, gerando raízes complexas conjugadas (1±i√5) e, portanto, solução em termos de exponencial modulando seno e cosseno. Nos demais itens (a–d) o discriminante é ≥0, produzindo raízes reais (distintas ou repetidas).","

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

",[205],{"_43":206,"_57":207,"_59":208,"_150":151,"_152":209,"_123":210,"_125":210,"_45":211,"_127":208},"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",{"_156":212,"_158":159,"_160":213},4,12302,{"_40":215,"_42":41,"_43":216,"_77":217,"_101":229,"_102":230,"_51":231},"6831a9b9-c9a4-4a76-bd7a-2ce98bfea875","93a32dd4-5fc6-4ccb-a76f-4724bf113742",[218,221,224,226],{"_43":219,"_81":82,"_83":220},"13e3f476-a0a5-421f-b47e-0969e8e9a7e0","

Verdadeiro, verdadeiro, falso

",{"_43":222,"_81":87,"_83":223},"c9a20855-d84b-4860-8b35-9784818282cf","

Falso, verdadeiro, verdadeiro

",{"_43":215,"_81":91,"_83":225},"

Verdadeiro, falso, verdadeiro

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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????",[205],[205,254,260,270,277,284,285,293,299,304,310,317],{"_43":255,"_57":58,"_59":60,"_150":151,"_152":256,"_123":154,"_125":154,"_45":257,"_127":259},"6b6faf95-0e3a-4f58-abc8-e1444c48041d","92339f4f-ed20-4f4c-ad85-0c3de7e04ae0",{"_156":64,"_158":159,"_160":258},11846,"termodinamica-3",{"_43":261,"_57":262,"_59":263,"_150":151,"_152":264,"_123":265,"_125":265,"_45":266,"_127":269},"861ad829-750d-4a44-9569-2f18b430b4df","Engenharia Mecatrônica","engenharia-mecatronica","eb9315c5-bd04-4116-aa46-02c4fde320c0","2025-04-29T02:19:12.828432+00:00",{"_156":267,"_158":159,"_160":268},5,30614,"engenharia-mecatronica-1",{"_43":271,"_57":272,"_59":273,"_150":151,"_152":261,"_123":210,"_125":210,"_45":274,"_127":276},"88fe96b3-2a17-4198-90d5-ddda3d6f5d45","Mecânica","mecanica",{"_156":267,"_158":159,"_160":275},25741,"mecanica-3",{"_43":256,"_57":278,"_59":279,"_150":151,"_152":264,"_123":265,"_125":265,"_45":280,"_127":283},"Engenharia Mecânica","engenharia-mecanica",{"_156":281,"_158":159,"_160":282},11,36318,"engenharia-mecanica-2",{"_43":147,"_57":148,"_59":149,"_150":151,"_152":153,"_123":154,"_125":154,"_45":155,"_127":149},{"_43":286,"_57":287,"_59":288,"_150":151,"_152":-5,"_123":289,"_125":289,"_45":290,"_127":288},"9772e958-72c6-4499-ad47-877cf94d670d","Exatas","exatas","2025-04-29T01:56:45.284172+00:00",{"_156":291,"_158":159,"_160":292},18,135489,{"_43":294,"_57":58,"_59":60,"_150":151,"_152":206,"_123":295,"_125":295,"_45":296,"_127":298},"b21374de-aae5-4a4a-9bf3-0420e731797e","2025-04-29T04:00:14.680867+00:00",{"_156":159,"_158":159,"_160":297},8597,"termodinamica-5",{"_43":209,"_57":300,"_59":301,"_150":151,"_152":264,"_123":265,"_125":265,"_45":302,"_127":303},"Engenharia de Petróleo","engenharia-de-petroleo",{"_156":267,"_158":159,"_160":213},"engenharia-de-petroleo-1",{"_43":153,"_57":305,"_59":306,"_150":151,"_152":286,"_123":265,"_125":265,"_45":307,"_127":309},"Física","fisica",{"_156":281,"_158":159,"_160":308},13777,"fisica-4",{"_43":264,"_57":311,"_59":312,"_150":151,"_152":-5,"_123":313,"_125":313,"_45":314,"_127":312},"Engenharia","engenharia","2025-04-29T01:55:38.635246+00:00",{"_156":315,"_158":159,"_160":316},29,351586,{"_43":318,"_57":58,"_59":60,"_150":151,"_152":271,"_123":319,"_125":319,"_45":320,"_127":321},"f5967cbe-d751-4b40-81f2-04eb5dead2a9","2025-04-29T04:00:13.215003+00:00",{"_156":159,"_158":159,"_160":297},"termodinamica-4","tagsTree",[324,328],{"_43":286,"_57":287,"_59":288,"_150":151,"_152":-5,"_123":289,"_125":289,"_45":290,"_127":288,"_162":325},[326],{"_43":153,"_57":305,"_59":306,"_150":151,"_152":286,"_123":265,"_125":265,"_45":307,"_127":309,"_162":327},[146],{"_43":264,"_57":311,"_59":312,"_150":151,"_152":-5,"_123":313,"_125":313,"_45":314,"_127":312,"_162":329},[330,336,340],{"_43":261,"_57":262,"_59":263,"_150":151,"_152":264,"_123":265,"_125":265,"_45":266,"_127":269,"_162":331},[332],{"_43":271,"_57":272,"_59":273,"_150":151,"_152":261,"_123":210,"_125":210,"_45":274,"_127":276,"_162":333},[334],{"_43":318,"_57":58,"_59":60,"_150":151,"_152":271,"_123":319,"_125":319,"_45":320,"_127":321,"_162":335},[],{"_43":256,"_57":278,"_59":279,"_150":151,"_152":264,"_123":265,"_125":265,"_45":280,"_127":283,"_162":337},[338],{"_43":255,"_57":58,"_59":60,"_150":151,"_152":256,"_123":154,"_125":154,"_45":257,"_127":259,"_162":339},[],{"_43":209,"_57":300,"_59":301,"_150":151,"_152":264,"_123":265,"_125":265,"_45":302,"_127":303,"_162":341},[342],{"_43":206,"_57":207,"_59":208,"_150":151,"_152":209,"_123":210,"_125":210,"_45":211,"_127":208,"_162":343},[344],{"_43":294,"_57":58,"_59":60,"_150":151,"_152":206,"_123":295,"_125":295,"_45":296,"_127":298,"_162":345},[],"videoDislikes",{},"videoLikes",{},"actionData","errors"]

Comentários