As you stand by a railroad track, a train approaches with its whistle blowing. After the train has passed you, you hear that the whistle frequency is 18.0% lower than its frequency while the train was approaching. How fast is the train moving? Express your answer in km/hr. (Note that the speed of sound that day is 332.7 m/s.)
Interference of sound
Seiche
A seiche is an oscillating standing wave in a body of water. The term seiche pronounced saysh) can be understood by the sloshing of water back and forth in a swimming pool. The same phenomenon happens on a much larger scale in vast bodies of water including bays and lakes. A seizure can happen in any enclosed or semi-enclosed body of water.
As you stand by a railroad track, a train approaches with its whistle blowing.
After the train has passed you, you hear that the whistle frequency is 18.0% lower than its frequency while the train was approaching. How fast is the train moving? Express your answer in km/hr. (Note that the speed of sound that day is 332.7 m/s.)
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