on a day when the velocity of sound is 340 m/s, a boy drops a stone from the top of a high tower. if the tower is 50 m t
Posted: Sun May 22, 2022 10:01 am
on a day when the velocity of sound is 340 m/s, a boy drops a stone from the top of a high tower. if the tower is 50 m tall, how long will it take for the boy to hear the returning sound?