18. Waves & Sound
The Doppler Effect
7:48 minutes
Problem 16b
Textbook Question
Textbook QuestionThe siren of a fire engine that is driving northward at 30.0 m>s emits a sound of frequency 2000 Hz. A truck in front of this fire engine is moving northward at 20.0 m>s. (b) What wavelength would this driver measure for these reflected sound waves?
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