Doppler Effect: A police car has an 800-Hz siren. It is traveling at 35.0 m/s on a day when the speed of sound through air is 340 m/s. The car approaches and passes an observer who is standing along the roadside. What change of frequency does the observer hear?
A. 0 Hz
B. 82 HZ
C. 166 Hz
D. 249 Hz
Answer: C
Physics & Space Science
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