Answer Happy

(15 points) An ambulance has a siren that has a frequency of 400 Hz as heard by the ambulance driver. Assume that the speed of sound in air is 350 m/s. a. Consider the following two cases: 1) The ambulance drives with a speed of 35 m/s toward a motorist whose car is parked along the side of the road. 2) The motorist drives with a speed of 35 m/s toward the ambulance, which is parked along the side of the road. In which case (if any) would the frequency of the siren as heard by the motorist be higher: case 1) or case 2), or would it be the same in both cases? Explain your answer.(8 points) b. Suppose instead that the ambulance is traveling on a straight, level road at 20 m/s while the motorist is chasing the ambulance at a speed of 35 m/s. What is the frequency of the siren as heard by the motorist? (7 points)