A minivan moving at 38 m/s passes an unmakred police car moving at24 m/s. The EM
ID: 1676612 • Letter: A
Question
A minivan moving at 38 m/s passes an unmakred police car moving at24 m/s. The EMF waves produced by the police radar gun have afrequency of 8.25 x 109 hz. What is the magnitude of the difference in frequency between thewaves emitted by the gun & those that are reflected back fromthe minivan?a) 180 hz
b) 390 hz
c) 770 hz
d) 1440 hz
e) 2100 hz
A minivan moving at 38 m/s passes an unmakred police car moving at24 m/s. The EMF waves produced by the police radar gun have afrequency of 8.25 x 109 hz. What is the magnitude of the difference in frequency between thewaves emitted by the gun & those that are reflected back fromthe minivan?
a) 180 hz b) 390 hz c) 770 hz d) 1440 hz e) 2100 hz
Explanation / Answer
A minivan moving at 38 m/s passes an unmakred police car moving at24 m/s. The EMF waves produced by the police radar gun have afrequency of 8.25 x 109 hz. What is the magnitude of the difference in frequency between thewaves emitted by the gun & those that are reflected back fromthe minivan?a) 180 hz b) 390 hz c) 770hz d) 1440 hz e) 2100 hz