Question

N which one of the following locations can a person hear the echo of a sound?

Answer 1

at least 16.6 meters in front of the reflecting surface

Step-by-step explanation:

Answer 2

The answer to this is At least 16.6 meters in front of the reflecting surface.

The speed of sound without any interference is only about 340 m/s through the vibration of the media in which it passes through.

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