An Ambulance Is Generating a Siren Sound at a Frequency

An ambulance is generating a siren sound at a frequency of 2,400 Hz. The speed of sound is 345.0 m/s. If the ambulance is traveling at a velocity of 24.00 m/s toward the stationary observer, then what is the frequency of the siren perceived by the observer?

A) 2,579 Hz
B) 2,540 Hz
C) 2,525 Hz
D) 2,500 Hz
E) 2,480 Hz

Correct Answer:

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