Determine the frequency of the car horn

Reference no: EM13491289

A car is approaching a reflecting wall. A stationary observer behind the car hears a sound of frequency 790 Hz from the car horn and a sound of frequency 813 Hz from the wall.

(a) How fast is the car traveling?

in km/h

(b) What is the frequency of the car horn?

in Hz

Reference no: EM13491289

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