A commuter train blows its 200 Hz horn as it approaches a crossing. The speed of sound is 332 m/s. (a) An observer waiting at the crossing receives a frequency of 211 Hz. What is the speed of the train (in m/s)? m/s (b) What frequency (in Hz) does the observer receive as the train moves away? Hz

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A commuter train blows its 200 Hz horn as it approaches a crossing. The speed of sound is 332 m/s.
(a) An observer waiting at the crossing receives a frequency of 211 Hz. What is the speed of the train (in m/s)?
m/s
(b) What frequency (in Hz) does the observer receive as the train moves away?
Hz
Transcribed Image Text:A commuter train blows its 200 Hz horn as it approaches a crossing. The speed of sound is 332 m/s. (a) An observer waiting at the crossing receives a frequency of 211 Hz. What is the speed of the train (in m/s)? m/s (b) What frequency (in Hz) does the observer receive as the train moves away? Hz
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