4. An emergency vehicle is traveling at 45 m/s approaching a car heading in the same direction at a speed of 24 m/s. The emergency vehicle driver has a siren sounding at 650 Hz. At what frequency does the driver of the car hear the siren? (Assume the speed of sound in air is 340 m/s.)
4. An emergency vehicle is traveling at 45 m/s approaching a car heading in the same direction at a speed of 24 m/s. The emergency vehicle driver has a siren sounding at 650 Hz. At what frequency does the driver of the car hear the siren? (Assume the speed of sound in air is 340 m/s.)
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter17: Physics Of Hearing
Section: Chapter Questions
Problem 30PE: (a) What frequency is received by a person watching an oncoming ambulance moving at 110 km/h and...
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4. An emergency vehicle is traveling at 45 m/s approaching a car heading in the same direction at a speed of 24 m/s. The emergency vehicle driver has a siren sounding at 650 Hz. At what frequency does the driver of the car hear the siren? (Assume the speed of sound in air is 340 m/s.)
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the speed of sound is 340 on the question.
for the answer they use 343. why?
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