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18. A red car and a blue car can move along the same straight one-lane road. Both cars can move only at one speed when they move (e.g., 60 mph). The driver of the red car sounds his horn. In which one of the following situations does the driver of the blue car hear the highest horn frequency? (a) Both cars are moving at the same speed, and they are moving apart. (b) Both cars are moving in the same direction at the same speed. (c) Both cars are moving at the same speed, and they are moving toward each other. (d) The red car is moving toward the blue car, which is stationary. (e) The blue car is moving toward the red car, which is stationary.

18. A red car and a blue car can move along the same straight one-lane road. Both cars can move only at one speed when they move (e.g., 60 mph). The driver of the red car sounds his horn. In which one of the following situations does the driver of the blue car hear the highest horn frequency? (a) Both cars are moving at the same speed, and they are moving apart. (b) Both cars are moving in the same direction at the same speed. (c) Both cars are moving at the same speed, and they are moving toward each other. (d) The red car is moving toward the blue car, which is stationary. (e) The blue car is moving toward the red car, which is stationary.

College Physics
College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter2: Motion In One Dimension
Section: Chapter Questions
Problem 72AP: In Bosnia, the ultimate test of a young nuns courage used to be to jump off a 400-year-old bridge...
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18. A red car and a blue car can move along the same straight one-lane road. Both cars can move only at one speed when they move (e.g., 60 mph). The driver of the red car sounds his horn. In which one of the following situations does the driver of the blue car hear the highest horn frequency? (a) Both cars are moving at the same speed, and they are moving apart. (b) Both cars are moving in the same direction at the same speed. (c) Both cars are moving at the same speed, and they are moving toward each other. (d) The red car is moving toward the blue car, which is stationary. (e) The blue car is moving toward the red car, which is stationary.
Transcribed Image Text:18. A red car and a blue car can move along the same straight one-lane road. Both cars can move only at one speed when they move (e.g., 60 mph). The driver of the red car sounds his horn. In which one of the following situations does the driver of the blue car hear the highest horn frequency? (a) Both cars are moving at the same speed, and they are moving apart. (b) Both cars are moving in the same direction at the same speed. (c) Both cars are moving at the same speed, and they are moving toward each other. (d) The red car is moving toward the blue car, which is stationary. (e) The blue car is moving toward the red car, which is stationary.
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