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2. (19 points) You are driving along a highway when you hear the siren of a police car driving at approaching you from behind, and you perceive the frequency as 1320 Hz. You are relieved that he is in pursuit of a speeding Porsche 911car when he continues past you, but now you perceive the frequency as 1265 Hz. (The speed of sound in the air is 344 m/s.) m/ a) What is the frequency of the siren in the police car?
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3 44 (DI 1+ V-12 144.- 1329 = 1,0435 v-19 34y 325 = 373 .ヲg05-,,0435 V -) velociち@the Vニ 51. 5누8 pslie Sustrtat this valu in

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