Susan stands on the side of the road and observes a fire truck driving at 35 m/s. The truck turns on its siren, which has a frequency of 15,000 Hz. Assume the speed of sound is 340 m/s. a. What frequency will Susan hear as the fire truck drives directly toward her? b. What frequency will Susan hear as the fire truck drives directly away from her?

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ISBN:9781938168000
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Chapter17: Physics Of Hearing
Section: Chapter Questions
Problem 31PE: (a) At an air show a jet flies directly toward the stands at a speed of 1200 km/h, emitting a...
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Susan stands on the side of the road and observes a fire truck driving at 35 m/s. The truck turns on its siren, which has a frequency of 15,000 Hz. Assume the speed of sound is 340 m/s.

a. What frequency will Susan hear as the fire truck drives directly toward her?

b. What frequency will Susan hear as the fire truck drives directly away from her?

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