Standing at a crosswalk, you hear a frequency of 560 Hz from the siren of an approaching ambulance, After the ambulance passes, the observed frequency of the siren is 480 Hz. Determine the ambulance's speed from these observations. Speed of sound `=343(m)/(s)`.

The sound emitted from the siren of an ambulance has frequency of 1500 Hz. The speed of sound is 340 m//s . Calculate the difference in frequencies heard by a stationary observer in the ambulance initially, travels towards and then away from the observer at a speed of 30 m//s .

You are at a street comer aud hear an ambulance siren. Without looking how can you tell when the ambulance passes by?

A stationary source of sound is emitting sound of frequency 500Hz . Two observers A and B lying on the same line as the source, observe frequencies 480Hz and 530 Hz respectively. The velocity of A and B respectively are (in m//s ), speed of sound =300m//s .

A stationary source of sound is emitting sound of frequency 500Hz . Two observers A and B lying on the same line as the source, observe frequencies 480Hz and 530 Hz respectively. The velocity of A and B respectively are (in m//s ), speed of sound =300m//s .

An ambulance is traveling down a highway at 34.5 ms^(-1) . The ambulance having siren emits sound of frequency 380 Hz. If a passenger in a car travelling with the speed of 26.4 ms^(-1) in the opposite direction as the car approaches the ambulance and after the two vehicles passed each other, then find the frequency heared by that passenger. Take speed of sound in air is 343 ms^(-1)

An observer is standing 500 m away from a vertical hill. Starting between the observer and the hill, a police van sounding a siren of frequency 1000 Hz moves towards the hill with a uniform speed. If the frequency of the sound heard directly from the siren is 970 Hz, the frequency of the sound heard after reflection from the hill (in Hz) is about,(velocity of sound = 330ms^-1

An observer is standing 500 m away from a vertical hill. Starting between the observer and the hill, a police van sounding a siren of frequency 1000 Hz moves towards the hill with a uniform speed. If the frequency of the sound heard directly from the siren is 970 Hz, the frequency of the sound heard after reflection from the hill (in Hz) is about,(velocity of sound = 330ms^-1