Passengers in an auto traveling at 16.0 m/s toward the east hear a siren frequency of 950

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Passengers in an auto traveling at 16.0 m/s toward the east hear a siren frequency of 950 Hz from an emergency vehicle approaching them from behind at a speed (relative to the air and ground) of 40.0 m/s. The speed of sound in air is 340 m/s.

(a) What siren frequency does a passenger riding in the emergency vehicle hear?

(b) What frequency do the passengers in the auto hear after the emergency vehicle passes them?

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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