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You are driving along a highway at 25 m/s when you hear the siren of an emergency vehicle traveling ...

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You are driving along a highway at 25 m/s when you hear the siren of an emergency vehicle traveling ...

You are driving along a highway at 25 m/s when you hear the siren of an emergency vehicle traveling at constant speed in the opposite direction on the other side of the highway. When the vehicle is approaching you, you hear the frequency of the siren as 2380 Hz, but when it is past you the frequency becomes 1680 Hz. What is the speed of the vehicle? The speed of sound in air is 343 m/s.
A) 35 m/s
B) 32 m/s
C) 30 m/s
D) 41 m/s
E) 50 m/s

Textbook

College Physics

Edition: 1^st

Authors: Etkina, Gentile, Van Heuvelen

Read 135 times

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Chery Author

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7 years ago

Thanks a million

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