10. An ambulance is driving away from you in an area with a speed limit of 50 km/h. You measure the frequency of one of its siren tones to be 737 Hz, when you know the actual frequency of the tone to be 770 Hz. The temperature outside is 13'C. Use the formula below to approximate the speed of sound in that temperature, then determine if the ambulance was speeding. Show all your work, including your rearranging of the Doppler equation. v = 331 + 0.617 where v is the speed of sound and 7 is the temperature in C