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A boy drops a stone into a well and hears the splash of the splash of...

A boy drops a stone into a well and hears the splash of the splash of the stone hitting the water
6.3 s later. If the speed of sound travels from the water level to the top at 320 m/s, how deep is the
water below the ground?
A. 87.0 m
B. 1100 m
C. 120 m
D. 240 m
E. None of the above

Science   Physics   
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