Find the frequency of the waves reflected back to detector

Reference no: EM13322946

A stationary detector sends out a sound wave of frequency 0.315 MHz toward an approaching car. The speed of the car is 40 m/s.

a) What is the frequency of the wave as observed by an observer in the car?

b) What is the frequency of the waves reflected back to the detector?

Reference no: EM13322946

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