15. A factory siren indicating the end of a shift has a frequency of 80 Hz where the speed of sound in air is 343 m/s. What frequency is perceived by the occupant of a car that is traveling at 30 m/s (a) towards the factory and (b) away from the factory?

15. A factory siren indicating the end of a shift has a frequency of 80 Hz where the speed of sound in air is 343 m/s. What frequency is perceived by the occupant of a car that is traveling at 30 m/s (a) towards the factory and (b) away from the factory?

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 17.12OQ: With a sensitive sound-level meter, you measure the sound of a running spider as -10 dB. What does...

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15. A factory siren indicating the end of a shift has a frequency of 80 Hz where the speed of sound in air is 343
m/s. What frequency is perceived by the occupant of a car that is traveling at 30 m/s (a) towards the factory and
(b) away from the factory?
16. A police car has an 800-Hz siren. It is traveling at 35.0 m/s on a day when the speed of sound
The car annroaches and nasses anobs
through air is 340 m/s
who is standing along the roadside
91 9:06

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