2. An ambulance travels down a straight section of highway at a speed of 120 km/h, its siren emitting sound at a frequency of 500 Hz. What is the approximate frequency heard by a passenger in a car travelling on the same highway at a speed of 50 km/h approaching the ambulance on the other side of the road? Assume that the velocity of sound in air is 340 m/s.

Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter17: Sound Waves
Section: Chapter Questions
Problem 17.37P: An ambulance moving at 42 m/s sounds its siren whose frequency is 450 Hz. A car is moving in the...
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2. An ambulance travels down a straight section of highway at a speed of 120 km/h, its siren emitting sound at a frequency
of 500 Hz. What is the approximate frequency heard by a passenger in a car travelling on the same highway at a speed of
50 km/h approaching the ambulance on the other side of the road? Assume that the velocity of sound in air is 340 m/s.
Transcribed Image Text:2. An ambulance travels down a straight section of highway at a speed of 120 km/h, its siren emitting sound at a frequency of 500 Hz. What is the approximate frequency heard by a passenger in a car travelling on the same highway at a speed of 50 km/h approaching the ambulance on the other side of the road? Assume that the velocity of sound in air is 340 m/s.
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