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Physics, 25.05.2021 21:30 giovney

A man yelled in to an empty alley and heard his echo 0.27 s after he yelled. Let's assume the sound wave leaves the person bounces off the wall at the end of the alley then come back to the person. How long is the alley if the speed of sound is 343 m/s?

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A man yelled in to an empty alley and heard his echo 0.27 s after he yelled. Let's assume the sound...

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