A driver travels northbound on a highway at a speed of 30.0 m/s. A police car, travelling southbound at a speed of 38.0 m/s approaches with its siren producing sound at a frequency of 2500Hz.
a) What frequency does the driver observe while the police car approaches?
Hz
b) What frequency does the driver detect by after the police car passes him?
Hz
c) Repeat parts a and b for the case when the police car is travelling northbound.
Frequency as the police car approaches
Hz
Frequency after the police car passes