A boy threw a stone downward from rest from a cliff of height h from the surface of the water. Th...

A boy threw a stone downward from rest from a cliff of height h from the surface of the water. The sound of the stone hits the water is actually heard 4 s after the stone is released from rest. a) What is the height h from which the stone released? The speed of sound in air (at the ambient temperature) is 336 m/s. (b) If the travel time for the sound is neglected, what percentage error is introduced when the height h is calculated?. (Suppose g= -9.8m/s2).