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Chemistry, 15.08.2020 17:01 kevinmarroquin6
A mountaineer shouts for help Half a second later (0.5 she hears the echo How far away is the rock face which is reflecting her voice (take the speed of sound to be 330 m/s
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A mountaineer shouts for help Half a second later (0.5 she hears the echo How far away is the rock f...
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