A stationary whistle emits a sound of 188hz. if passengers, Ask an Expert

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Q. A 95 g arrow is fired from a bow whose string exerts an average force of 125 on arrow over a distance of 83 cm. What is the speed of the arrow as it leaves bow?

Q. A stationary whistle emits a sound of 188Hz. If passengers in a car hear the whistle with a frequency of 198 Hz, how fast was the car moving? Make use of 340 m/s for the sound velocity.

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