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Physics, 25.02.2020 01:31 jalenm266

Three guys are standing in a row, facing a solid, high wall. Guy A is 10 m from the wall, B is 20 m away from the wall, and C is 30 m away from it. Guy B shouts. Will any other guy be able to hear an echo of Guy B’s shout?

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Three guys are standing in a row, facing a solid, high wall. Guy A is 10 m from the wall, B is 20 m...
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