DopplerPost - B A Student A tosses Doppler Ball to Student...

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Unformatted text preview: B A Student A tosses Doppler Ball to Student B B A Ball has constant speed v toward Student B. s v s B A Ball emits sound of frequency f and wavelength 8 = (343 m/s)/ f v s Ball emits 8 & f B A v s Wave-fronts are spherical & expand around emission point, but ball moves forward. Ball emits 8 & f B A v s Wave-fronts are spherical & expand around emission point, but ball moves forward, so wave is compressed for B and Ball emits 8 & f B A v s Wave-fronts are spherical & expand around emission point, but ball moves forward, so wave is compressed for B and stretched out for A. Ball emits 8 & f B A v s Wave-fronts are spherical & expand around emission point, but ball moves forward, so wave is compressed for B and stretched out for A, where wavelength is distance between successive wave crests. Ball emits 8 & f A v s 8 N < 8 & for B f N > f Ball emits 8 & f A v s 8 N > 8 & f N < f for A 8 N < 8 & for B f N > f Ball emits 8 & f A Emits 8 & f B If Doppler Ball is stationary, then the wavelength is the same in all directions....
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This note was uploaded on 04/17/2008 for the course PHYSICS 135-3 taught by Professor Brown during the Spring '08 term at Northwestern.

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DopplerPost - B A Student A tosses Doppler Ball to Student...

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