Answer: (II) In one of the original Doppler experiments, a
Chapter , Problem 67(choose chapter or problem)
(II) In one of the original Doppler experiments, a tuba wasplayed on a moving flat train car at a frequency of 75 Hz,and a second identical tuba played the same tone while atrest in the railway station. What beat frequency was heardin the station if the train car approached the station at aspeed of 12.0 m/s?
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