A boy yells in a narrow valley. The sound reflects off of a boulder that is 80m away. HOW LONG will it take to hear the echo if the speed of a sound wave is 320 m/s

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asked Sep 27, 2020 233k views

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A boy yells in a narrow valley. The sound reflects off of a boulder that is 80m away. HOW LONG will it take to hear the echo if the speed of a sound wave is 320 m/s

Physics
middle-school

Mighq asked

by Mighq

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1 Answer

4 votes

Answer:

0.5s

Step-by-step explanation:

The answer is 0.5s as shown in the image attached.

A boy yells in a narrow valley. The sound reflects off of a boulder that is 80m away-example-1

Elwyn answered Oct 3, 2020

by Elwyn

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