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An ambulance is generating a siren sound at a frequency of 2,000 Hz. The speed of sound is 345.0 m/s. The observer and the

An ambulance is generating a siren sound at a frequency of 2,000 Hz. The speed of sound is 345.0 m/s. The observer and the ambulance are traveling toward each other at a velocity of 24.00 m/s. If the ambulance is stationary, what is the frequency of the siren perceived by the observer?

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