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2 years ago

9

A stationary speed gun emits a microwave beam at 2.10x10^10 Hz. It reflects off a car and returns 638 Hz lower. What is the spee

d of the car? (Unit=m/s)

1 answer:

stiv31 [10]2 years ago

6 0

Answer:

The answer is 4.55 m/s!

Explanation:

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