Doppler Effect Receding Receiver Calculator

I want to calculate
Source Frequency(f0) = Hz
Receiver Velocity(ur) = m/s
Wave Velocity(v) = m/s
New Frequency of Receding Receiver(f') = Hz
 

The Doppler effect/shift is the change in frequency of a wave moving relative to its source. the received frequency is higher during the approach.

Doppler Effect Receding Receiver formula

New Frequency of Receding Receiver: f' = f0(1-ur/v)

where ur = Receiver Velocity, f0 = Source Frequency, f' = New Frequency of Receding Receiver, v = Wave Velocity.

For example, when Source Frequency(f0) = 2 Hz, Receiver Velocity(ur) = 10 m/s, Wave Velocity(v) = 12 m/s, New Frequency of Receding Receiver(f') = 0.33Hz.

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