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File:Velocidade do som em metais pelo método do tempo de voo.pdf

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Português: Este trabalho propõe uma instrumentação, simples de manipular, destinado a aulas experimentais de ensino médio ou de graduação, capaz determinar a velocidade do som em barras metálicas através do tempo de voo, i.e., do tempo de propagação de um pulso longitudinal. O pulso é produzido a partir de uma perturbação (choque mecânico) em uma das extremidades de uma barra, sua velocidade é obtida através da razão do espaço percorrido pelo pulso e do tempo de propagação. Encontrou-se para o aço o valor de 4,7 km/s, com 5,3% de incerteza total em relação ao valor teórico.
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Source http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1806-11172020000100620&lng=pt&nrm=iso&tlng=pt
Author Denilson B. de Souza Jr., John W. B. de Araújo, Edson M. Kakuno
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current18:44, 28 February 2021Thumbnail for version as of 18:44, 28 February 20211,239 × 1,752, 6 pages (10.36 MB)BahYajé e Y4guarEtã (talk | contribs)Transferred from http://www.scielo.br/pdf/rbef/v42/1806-9126-RBEF-42-e20200164.pdf

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