Suppose an oncoming ambulance moving at 115 km/h emits a steady 805-Hz sound from its siren. a. What frequency, in Hz, is received by a person watching the oncoming ambulance? The speed of sound on this day is 345 m/s. b. What frequency, in Hz, does she observe after the ambulance has passed?

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A: This problem is based on the concept of doppler effect.

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A:

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A: The frequency of the sound wave is f=38.0 Hz The sound intensity level is L=60 dB The density of air…

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A: The Doppler effect equation when the source is moving towards the observer is given as,