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

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?

Scott · Answer

look up Doppler shift formula

Sara · Answer

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