A train is moving parallel to a highway with a constant speed of 20 m/sec. A car is traveling in the same direction as the train with a speed of 30 m/sec. The car horn sounds at a frequency of 510 Hz, and the train whistle sounds at a frequency of 320 Hz. 320H2 30 n/s 13. When the car is behind the train, what frequency does the driver observe for the train whistle? (Treat the train whistle as the sound source, the driver as the listener.) 14. When the car is in front of the train, what frequency does the passenger on the train observe for the car horn just after the car passes? ( Treat the car as the sound source, passenger as the listener.)

A train is moving parallel to a highway with a constant speed of 20 m/sec. A car is traveling in the same direction as the train with a speed of 30 m/sec. The car horn sounds at a frequency of 510 Hz, and the train whistle sounds at a frequency of 320 Hz. 320H2 30 n/s 13. When the car is behind the train, what frequency does the driver observe for the train whistle? (Treat the train whistle as the sound source, the driver as the listener.) 14. When the car is in front of the train, what frequency does the passenger on the train observe for the car horn just after the car passes? ( Treat the car as the sound source, passenger as the listener.)