On a rainy day, while driving your car, you notice that
Chapter 14, Problem 12CQ(choose chapter or problem)
Problem 12CQ
On a rainy day, while driving your car, you notice that your windshield wipers are moving in synchrony with the wiper blades of the car in front of you. After several cycles, however your wipers and the wipers of the other car are moving opposite to one another. A short time later the wipers are synchronous again. What wave phenomena do the wipers illustrate? Explain.
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