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Mathematics, 20.10.2021 01:00 ella9288
A tennis player hits a ball hard and 0.4 s later hears the echo sound from a wall. The speed of sound in air is 330 ms. How ?far away is the player from the wall
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A tennis player hits a ball hard and 0.4 s later hears the echo sound from a wall. The speed of soun...
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