Two cars have speakers mounted on their roofs which play identical have identical frequency of 450...
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Two cars have speakers mounted on their roofs which play identical have identical frequency of 450 Hz. One of the cars is moving with a speed of 14.5 m/s toward a stationary observer on the roadside, and the other car is parked nearby. The speed of sound is 343 m/s. What is the beat frequency heard by the observer? O 19.9 Hz O 18.3 Hz O 9.9 Hz O 4.5 Hz O 470 Hz Two cars have speakers mounted on their roofs which play identical have identical frequency of 450 Hz. One of the cars is moving with a speed of 14.5 m/s toward a stationary observer on the roadside, and the other car is parked nearby. The speed of sound is 343 m/s. What is the beat frequency heard by the observer? O 19.9 Hz O 18.3 Hz O 9.9 Hz O 4.5 Hz O 470 Hz
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