Question

A sonar station picks up after 3 sec how for away is the object if the speed of sound in water 1440m per sec

Answer 1

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$given: \\ time = 3sec \\ wave \: velocity = 1440m\\ \ wave \: velocity = \frac{distance \: travelled \: by \: wave}{time \: taken } \\ 1440 = \frac{distance}{3} \\ distance = 1440 \times 3 \\ distance= 4320m \: ans:$

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