Предмет: Физика, автор: adamdaian

Преграда находится на расстоянии от человека в ста метрах. Через какое время он услышит своё эхо. Скорость звука 340 м/c.

Ответы

Автор ответа: Regent1828

Расстояние, которое должен пройти звук:

S = 2 · 100 = 200 (м)

Время, через которое звук вернется к человеку:

t = S/v = 200 : 340 ≈ 0,6 (c)

adamdaian: а дано?

Regent1828: Вам "дано" или решение??? - Сами не в состоянии написать?

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