Question

A siren emits a sound of frequency 1200 kHz. With which frequency is it received by a car moving at a speed of 20 m/s.
a) Away from the siren?
b) Towards the siren?
look up Doppler shift formula
A siren emits a sound of frequency 1200 kHz. With which frequency is it received by a car moving at a speed of 20 m/s.
a) Away from the siren?
b) Towards the siren?
The solution please

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