Calculate the proper frequency of the ambulances horn

Reference no: EM13309817

An ambulance driver traveling at 33.0 m/s honks his horn as he sees a motorist ahead on the highway, going in the same direction. The motorist hears a frequency of 399 Hz, and notices that his own speedometer reads 20.0 m/s. Calculate the proper frequency of the ambulance's horn. The speed of sound in air is 340.0 m/s.

Reference no: EM13309817

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