Physics, 27.02.2020 02:07 ana7496

A bat emits a sound at a frequency of 30.0 kHz as it approaches a wall. The bat detects beats such that the frequency of the echo is 900 Hz higher than the frequency the bat is emitting. The speed of the bat is closest to

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A bat emits a sound at a frequency of 30.0 kHz as it approaches a wall. The bat detects beats such t...