Physics
Physics, 04.09.2021 08:10, sauvifatcat

a sound wave travels to a high wall is 225m away from the source and is then reflected back. If the speed of sound in air is 340m. s¹, calculate the time it takes to hear the echo​

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a sound wave travels to a high wall is 225m away from the source and is then reflected back. If the...

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