Physics, 08.09.2020 14:01 selamh1999

A persistência acústica do ouvido humano (tempo que o som emitido leva para se extinguir totalmente) é de, no mínimo, 0,1 s. Considerando que a velocidade do som no ar é de 340 m/s, podemos concluir que uma pessoa ouve o eco (som refletido) de sua própria voz se estiver afastada do obstáculo refletor em, no mínimo: a)6,8 m b)10,2 m c)17 m d)24 m e)34 m

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A persistência acústica do ouvido humano (tempo que o som emitido leva para se extinguir totalmente)...