A speeding car is pulling away from the police car. The police car is moving at 30 m/s. The speeding car is moving at 65 m/s. The radar gun in the police car emits an electromagnetic wave with a frequency of 2.00 x 10^10Hz. The wave reflects from the speeding car and returns to the police car where the frequency is measured. The speed of light is 3 x 10^8 m/s. What is the frequency that will be measured by the detector? (This is tricky. What is the source of the wave here for our calculation? First you will need to calculate and find out what the frequency becomes when it hits the speeding car, and then use that to find the frequency measured at the detector.)

Answer rating: 100% (QA)

To solve this problem we need to consider the Doppler effect which describes how the frequency of a ... View the full answer