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A train is traveling at 25.0 m/s in still air. The frequency of the note emitted by the locomotive's whistle is 400 Hz. Calculate the

A train is traveling at 25.0 m/s in still air. The frequency of the note emitted by the locomotive's whistle is 400 Hz.

Calculate the length of the sound waves:

a) in front of the locomotive

b) behind of the locomotive

Calculate the frequency of the sound heard by a stationary receiver:

c) in front of the locomotive

d) behind the locomotive.

*Add drawing please*

Please do a sketch

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