Question: 1 5 . ( a ) What frequency is received by a person watching an oncoming ambulance moving at 1 1 0 km / h

15.(a) What frequency is received by a person watching an oncoming ambulance moving at 110 km/h and emitting a steady 800-Hz sound from its siren? The speed of sound on this day is 340 m/s.(b) What frequency does she receive after the ambulance has passed?

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