Multiple Choice
A car approaches you at a constant speed,sounding its horn,and you hear a frequency of 76 Hz.After the car goes by,you hear a frequency of 65 Hz.What is the frequency of the sound emitted by the horn? The speed of sound in the air is 343 m/s.
A) 68 Hz
B) 69 Hz
C) 70 Hz
D) 71 Hz
E) 72 Hz
Correct Answer:
Verified
Correct Answer:
Verified
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