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August 22, 2014

Homework Help: Physics doppler effect

Posted by Joan on Monday, May 16, 2011 at 7:39pm.

A radar device emits microwaves with a frequency of 4.73E+9 Hz. When the waves are reflected from a van moving directly away from the emitter, the beat frequency between the source wave and the reflected wave is 751 beats per second. What is the speed of the van? (Note: microwaves, like all forms of electromagnetic radiation, propagate at the speed of light c = 3.00108 m/s.) ... please show work.

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