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QUESTION 1S Ap toward The (Physics) Gr 12 is moving at a constant speed stationary observer. The driver the siren of the car when it is away from the observer. server records the detected frequency of the sound waves of the siren as the patrol car approaches, passes and moves away from him. The information obtained is shown in the grapt 15.1.1 Calculate the speed of the patrol car. 15.1.2 State the Doppler effect. 15.1.3 The detected frequency suddenly changes at t = 10 s. Take the speed of sound in air as 340 m/s. 15.1.4 Calculate the frequency of the sound emitte
by the si State TWO applications of the Doppler effect. TION 16 en of a police car which
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