Question

A splash is heard 3.91 after a stone is dropped into a well of 67.6 m deep The speed of sound in air is​

Answer 1

Answer:

T = Sqrt(2h/g) = Sqrt (2×67.6/9.81) = 3.71 sec. That means the sound of the splash took 0.2 sec to travel up the well, 67.6m, which gives a speed of 67.6/0.2 = 338m/sec.

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