Question

what is the formula to calculate echo?

Answer 1

b This rate is adjusted until each clap just coincides with the return of anecho of its predecessor, or until clap and echo are heard as equally spaced. c Use a stopwatch to find the time between claps, t. Make a rough measurement of distance to the wall, s. Thus the speed of sound, v = 2s/t in the first case.

Answer 2

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