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Sputnik (foguete) Menu de navegaçãoAjudeexpandindo-o

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Família R-7 de foguetes veículo de lançamentoorbitalSergei KorolevICBMR-7 Semyorkaórbita LEO Este artigo ou seção está a ser traduzido (desde dezembro de 2012). Ajude e colabore com a tradução. O foguete Sputnik PS. O foguete Sputnik , foi um veículo de lançamento orbital, projetado por Sergei Korolev, tendo como base, o ICBM R-7 Semyorka, também projetado por ele. Esse foguete da família R-7, usava apenas dois estágios: o primeiro composto dos quatro foguetes auxiliares laterais e o segundo o núcleo central. Acima deste apenas uma coifa cônica contendo a carga útil (satélites). Em 4 de Outubro de 1957, um desses foguetes, lançou o primeiro satélite artificial da Terra, o Sputnik 1 numa órbita LEO. Variantes SputnikPS (8K71PS) - usado para lançar os satélites Sputnik 1 e Sputnik 2 Sputnik (8A91) - usado para lançar o satélite Sputnik 3 Sputnik (11A59) ou Po...

why doesn't university give past final exams' answers Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern) Announcing the arrival of Valued Associate #679: Cesar Manara Unicorn Meta Zoo #1: Why another podcast?Should previous final exams be released to students?What is considered cheating in an open book exam?Reasons for not releasing mark schemes for past exams?What do universities usually do with a student's graded final exams?Test answer rejected for saying more than asked forIs it appropriate to underline key words in an exam answer?Am I obliged to tell students that there are different versions of the exam?3 3-hour exams in a row with no time in between. What can I do?Is it unethical to not give feedback on final exams or assignments?How to write practice exams as a student as a way to study

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