Doppler frequency for receding observer
An observer moves away from a stationary sound source in a ambulance siren recording. The source frequency is \(750\,\text{Hz}\), sound speed is \(340\,\text{m s}^{-1}\), and observer speed is \(16\,\text{m s}^{-1}\). Calculate the observed frequency. Enter the numerical result and choose the interpretation that matches the wave physics.
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Worked practice: physics data and result
Read the physical quantities first, then calculate the result and state what it means.