Physics, 06.10.2021 16:50 chrismeldajbaptiste
A student claps once when standing 100 m away from a large wall.
The speed of sound in air is 330 m/s.
How long after clapping does the student hear an echo?
Answers: 2
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A student claps once when standing 100 m away from a large wall.
The speed of sound in air is 330...
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