A girl is sitting near the open window of a train that is movingat a velocity of 22.00 m/s to the east. The girl's uncle standsnear the tracks and watches the train move away. The locomotivewhistle emits sound at frequency 770.0 Hz. The air is still. (Use343 m/s for the speed of sound in air for all parts of thisquestion.) (a) What frequency does the uncle hear? Hz (b) Whatfrequency does the girl hear? Hz (c) A wind begins to blow from theeast at 22.00 m/s. What frequency does the uncle now hear? Hz (d)What frequency does the girl now hear? Hz
