A convertible with the top down is traveling north on a road at a speed of 29.0 m/s. A police car, traveling south at a speed of 40.0 m/s, approaches with its siren producing sound at a frequency of 2450 Hz. (Enter your answers in Hz. Assume that the speed of sound in air is 343 m/s.) (a) What frequency does the driver of the convertible observe as the police car approaches? (Enter your answer to the nearest integer.) Hz (b) What frequency does the driver of the convertible detect after the police car passes her? Hz (c) Repeat parts (a) and (b) for the case when the police car is traveling northbound. while police car overtakes after police car passes Hz Hz