A commuter train blows its 200-Hz horn as it approaches a crossing. The speed of sound is 335 m/s. An observer waiting at the cr
ossing receives a frequency of 207 Hz. What is the speed of the train?
1 answer:
Answer:
346m/s
Explanation:
v1=335m/s
f1=200hz
f2=207hz
v2=?
v1/f1=v2/f2
335/200=v2/207
v2=335*207/200
v2=346m/s
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