A child hears an echo from a chiff 4second after the sound from a powerful cracker is produced How far away is the cliff from the child. speed of sound (340 m/s)
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Distance=Velocity×Time
Here Distance=2d
2d=vt
d=vt/2 =(340×4)/2 =680
Is it correct?
Here Distance=2d
2d=vt
d=vt/2 =(340×4)/2 =680
Is it correct?
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