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Physics, 02.09.2019 03:20 KathyRayG7456

An echo is heard 5.00 s from the initial sound and the air temperature is 25.0 °c. how far away is the barrier that reflected the sound?

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An echo is heard 5.00 s from the initial sound and the air temperature is 25.0 °c. how far away is t...

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