A child hears an echo from a cliff 4 seconds after the sound from a powerful cracker is produced.how far is the cliff from the child.speed of sound = 344m/s
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Time taken by sound to reach the cliff =4/2 = 2 sec.
Speed of sound = 344m/s
Distance/2=344
Distance=344×2=688m
Hence, the cliff is 688m far from the child
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Speed of sound = 344m/s
Distance/2=344
Distance=344×2=688m
Hence, the cliff is 688m far from the child
Plz mark it as Brainliest
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