Problem: A police car is traveling at a speed vc to the right and a truck is traveling at a speed  vt to the right. The frequency of the siren on the police car is fc.  What is the frequency ft heard by an observer in the moving truck? Let  vt be the speed of the observer in the truck, and vc be the speed of the source, the police car. The speed of sound in air is va.

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Problem Details

A police car is traveling at a speed vc to the right and a truck is traveling at a speed  vt to the right. The frequency of the siren on the police car is fc

What is the frequency ft heard by an observer in the moving truck? Let  vt be the speed of the observer in the truck, and vc be the speed of the source, the police car. The speed of sound in air is va.

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Our tutors have indicated that to solve this problem you will need to apply the The Doppler Effect concept. You can view video lessons to learn The Doppler Effect. Or if you need more The Doppler Effect practice, you can also practice The Doppler Effect practice problems.

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What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Florin's class at TEXAS.