A highway patrolman sends a 28.250-GHzradar beam toward a speeding car. The reflected wave is lower infrequency by 2.97 kHz. (a) Is the car moving toward or away fromthe radar gun? Explain. (b) What is the speed of the car? [Hint:For small values of x, the following approximation may be used:11 + x22 ≈ 1 + 2x.]

A highway patrolman sends a 28.250-GHzradar beam toward a speeding car. The reflected wave is lower infrequency by 2.97 kHz. (a) Is the car moving toward or away fromthe radar gun? Explain. (b) What is the speed of the car? [Hint:For small values of x, the following approximation may be used:11 + x22 ≈ 1 + 2x.]

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter24: Electromagnetic Waves

Section: Chapter Questions

Problem 53P

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