Physics, 03.03.2020 06:03 Angeldelissa

A rifle is fired in a valley with parallel vertical walls. The echo from one wall is heard 1.55 s after the rifle was fired. The echo from the other wall is heard 2.5 s after the first echo. How wide is the valley? The velocity of sound is 343 m/s. Answer in units of m.

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A rifle is fired in a valley with parallel vertical walls. The echo from one wall is heard 1.55 s af...

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