Posted by **OMAR** on Monday, May 30, 2011 at 1:41pm.

a car, moving at 100 mi/hr, passes a stationary police car whose siren has a frequency of 500 Hz. what is the frequency change heard by observer in the moving car as he passes the police car? the velocity of sound in air is 343 m/s. ( 1 mi= 1.609 km).

answer in units of Hz.

## Answer this Question

## Related Questions

- physical - You are driving along a highway at 27.7 m/s when you hear a siren. ...
- physics - 1)As a sound source moves away from a stationary observer, the number ...
- physics - 1)As a sound source moves away from a stationary observer, the number ...
- physics - A police car, whose siren has a natural frequency of 620Hz, moves away...
- Physics!! - A car moving at 16.0 m/s, passes an observer while its horn is ...
- DrBob222 - A car moving at 16.0 m/s, passes an observer while its horn is ...
- Physics - Question about doppler effect: How do you solve when it gives you ...
- PHYSICS-URGENT HELP - A stationary police car emits a sound of frequency 1200 Hz...
- physics - 1)As a sound source moves away from a stationary observer, the number ...
- Physics - A police car's siren has a frequency of 567-Hz while traveling at 24.8...

More Related Questions