A police officer with an exceptionally good ear hears an aproaching motorcycle. The engine sound he hears as the bike approaches is 195 Hz a) Is the actual sound the bike makes higher or lower in pitch? b) What causes this frequency shift? Indicate with a diagram c) Then after the bike passes, he hears 147 Hz as the perceived pitch. The bike has a constant speed of 48 m/s. If it is a nice, sunny 20 degree C day, what is the actual frequency emitted by this motorcyce?
A police officer with an exceptionally good ear hears an aproaching motorcycle. The engine sound he hears as the bike approaches is 195 Hz a) Is the actual sound the bike makes higher or lower in pitch? b) What causes this frequency shift? Indicate with a diagram c) Then after the bike passes, he hears 147 Hz as the perceived pitch. The bike has a constant speed of 48 m/s. If it is a nice, sunny 20 degree C day, what is the actual frequency emitted by this motorcyce?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A police officer with an exceptionally good ear hears an aproaching motorcycle. The engine sound he hears as the bike approaches is 195 Hz
a) Is the actual sound the bike makes higher or lower in pitch?
b) What causes this frequency shift? Indicate with a diagram
c) Then after the bike passes, he hears 147 Hz as the perceived pitch. The bike has a constant speed of 48 m/s. If it is a nice, sunny 20 degree C day, what is the actual frequency emitted by this motorcyce?
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