Multiple Choice
Two timpani (tunable drums) are played at the same time.One is correctly tuned so that when it is struck,sound is produced that has a wavelength of 2.20 m.The second produces sound with a wavelength of 2.10 m.If the speed of sound is 343 m/s,what beat frequency is heard?
A) 7 beats/s
B) 9 beats/s
C) 11 beats/s
D) 13 beats/s
E) 15 beats/s
Correct Answer:

Verified
Correct Answer:
Verified
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