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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A10-kg isto a of 10 m at aa0.9 kg/m.30 kg of ,at aas10-m .. ( 9.8 m/s2 g.)
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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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