A police car moving east at 40.0 m/s is chasing a speedingsports car moving east at 35.0 m/s. The police car’s siren has frequency1.20 * 10^3 Hz, the speed of sound is 340 m/s, and the air is still.(a) What is the frequency of sound that the driver of the speedingsports car hears? (b) If the speeding sports car were to turn aroundand drive west at 35.0 m/s toward the approaching police car, whatfrequency would the driver of the sports car hear?

A police car moving east at 40.0 m/s is chasing a speedingsports car moving east at 35.0 m/s. The police car’s siren has frequency1.20 * 10^3 Hz, the speed of sound is 340 m/s, and the air is still.(a) What is the frequency of sound that the driver of the speedingsports car hears? (b) If the speeding sports car were to turn aroundand drive west at 35.0 m/s toward the approaching police car, whatfrequency would the driver of the sports car hear?