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Exercício de AJUDA - FÍSICA

por Glegston (UFPE - 2009) Difícil Thursday, March 6th, 2014

Exercício:

Um estudante de física deseja localizar o ponto médio entre duas encostas de
um vale. A figura mostra uma vista de cima das encostas e a posição do
estudante. Ele faz explodir uma pequena bomba e registra os intervalos de
tempo ΔtD = 1,5 s e ΔtE = 0,50 s, respectivamente, entre a explosão e os
primeiros ecos do lado direito (D) e do esquerdo (E). Sabendo-se que a
velocidade do som vale v = 340 m/s, calcule a distância perpendicular, d, entre
a posição da explosão e a linha média, em metros. Suponha que o ar está
parado em relação ao solo.

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