They sound like any other car.
A siren.
If the police car is chasing you, the sound waves will have a higher frequency and intensity as it approaches you. As the police car moves away, the sound waves will have a lower frequency and intensity. This change in frequency and intensity can help you determine whether the police car is getting closer or farther away.
The sounds of a police car are often spelled as "woo-woo" or "nee-naw" to mimic the sound of the siren.
The change in pitch of a siren as a police car passes is due to the Doppler effect. As the car approaches, the sound waves are compressed, leading to a higher pitch. Once the car passes and moves away, the sound waves are stretched, resulting in a lower pitch. This phenomenon occurs because of the relative motion between the sound source and the observer.
no its not my freind has it and he talked back to the police when they told him to turn off the car
A police siren (and flashing blue lights) is used to warn people and vehicles to allow the police car through. The police could be going to an incident, when time is important. Or they may be chasing the vehicle of a fleeing criminal.
A marked police car has all the stickers such as Police, Dial 911 ect. and an unmarked car is as it says it has none of those decals to indicate it's a police car.
Semi Truck Fire Truck Police Car Ambulance Motorcycle Train Bus
go to Oakland and look @ a police car that is @ a police station
Police car on Halo Reach? No such thing.
car was takeing from police in bearsden where will it go to
all you have to do is stop the car and get out of the car and listen to the police siren