a body standing loom from the foot of a high wall claps this hand and the echo reaches him 0.5second laters.calculate the velocity of the sound.
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v=2d/t
so,we know
d=100m
t=1/2 s
v=2*100/0.5
v=400m/s
so,we know
d=100m
t=1/2 s
v=2*100/0.5
v=400m/s
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