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A police car uses a radar gun to measure the velocity of a car and find...

A police car uses a radar gun to measure the velocity of a car and find out if it is speeding. The most common radar gun mounted inside the squad car window or dashboard and lies in the X band frequencies of microwaves of 10.50-10.55 GHz. A handheld version of this radar gun utilizes the K band frequencies between 24.05-24.25 GHz.



A handheld radar (source of waves) with a frequency of 24.13 GHz is directed to car moving at 61 mph (detector of waves). What is the frequency of the microwaves detected by the car?
GHz


This microwaves with this frequency bounce back from the moving car (the source) and are detected by the stationary police car (which is now the detector). What is the frequency detected by the radar?
GHz

A handheld radar (source of waves) with a frequency of 24.13 GHz is directed car and detects a frequency of 29.4386 GHz, what is the speed of the car in m/s?
m/s


If the speed limit is 70 mph, is the car speeding?
What is the speed of the car in mph?
mph

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