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Ashley Hawkins
Physics
8 October, 00:10
What is the uses of echoes
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Annalise Ramirez
8 October, 00:29
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Echoes are the reflection of sound from relatively flat object that is far enough away that you can discern the time difference. Echoes are used to measure distance, velocity, and the shape of objects. Echoes off gratings result in an unusual pinging sound
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