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September 20, 2014

Homework Help: PHYSICS-URGENT HELP

Posted by Brit on Friday, July 29, 2011 at 3:03pm.

A stationary police car emits a sound of frequency 1200 Hz that bounces off of a car on the highway and returns to the police car with a frequency of 1250 Hz. The police car is right next to the highway, so the moving car is traveling either directly towards or directly away from the parked officer. Determine the carís velocity, and whether the car was traveling towards or away from the police car.

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