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A girl is sitting nearthe open window of a train that is moving at a velocity of17.00 m/s to the east. The girl'suncle stands near the tracks and watches the train move away. Thelocomotive whistle emits sound at frequency 1010.0 Hz. The air is still. (Use 343 m/s for thespeed of sound in air for all parts of this question.)
(a) What frequency does the uncle hear?
Hz
(b) What frequency does the girl hear?
(c) A wind begins to blow from the east at 17.00 m/s. What frequency does the uncle nowhear?
(d) What frequency does the girl now hear?
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