A Bat,flying at 7

question 96

Multiple Choice

A bat,flying at 7.00 m/s toward a wall,emits a chirp at 50.0 kHz.If the wall reflects this sound pulse,what is the frequency of the echo received by the bat? (v_sound = 340 m/s)

• A)52.1 kHz
• B)51.1 kHz
• C)50.0 kHz
• D)49.0 kHz
• E)48.6 kHz

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