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One whale says something to its …

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One whale says something to its friend 75 km away. How long will it be before the friend can hear it ? The speed of sound in water is 1500 m/s .

Posted by Rishikesh Anand 4 years, 5 months ago

CBSE > Class 08 > Science

2 answers

Sia ? 4 years, 5 months ago

<div>First, We convert 75Km in to meters .
So, we have 75km = 75000 m.
As we know that speed = Distance * Time,
we have, Time = Distance / Speed.
Therefore, from the question we have Time = 75,000 / 1500 = 50 seconds.</div>

1Thank You

Nilay Shah 4 years, 5 months ago

50 seconds

0Thank You

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CBSE > Class 08 > Science