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A man stands in front of a tall wall and produces a sound. If he receives the echo of ...

A man stands in front of a tall wall and produces a sound. If he receives the echo of the sound two seconds later, calculate his distance from the wall. (The speed of sound in air is 330ms-1)

A. 600m
B. 400m
C. 330m
D. 328m
E. 165m




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