A police siren of frequency f_s = 500 Hz is attached to a vibrating platform. The platform and siren oscillate up and down in simple harmonic motion with amplitude A = 10 cm and frequency f_p = 10 Hz. The velocity of sound in the air is 344 m/s. Find the range of sound frequencies that you would hear at a position directly above the siren as a function of time. What are the minimum and maximum frequencies that you would hear? At what point in the motion of the platform are the maximum/minimum frequencies heard?
