QUESTION 6 6.1 6.2 A traffic officer is standing on the side of a road where the speed limit is 100 km.h -1. He hears th

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Question 6 6 1 6 2 A Traffic Officer Is Standing On The Side Of A Road Where The Speed Limit Is 100 Km H 1 He Hears Th 1 (39.04 KiB) Viewed 27 times

QUESTION 6 6.1 6.2 A traffic officer is standing on the side of a road where the speed limit is 100 km.h -1. He hears the hooter of a car that is travelling at constant velocity on this road. The hooter emits sound waves of frequency 433,64 Hz. The wavelength of the sound waves detected by the traffic officer is 0,72 m. The speed of sound in air is 340 m.st. Calculate the frequency of the detected sound wave (3) State the Doppler-effect in words. (2) Is the car travelling towards or away from the traffic officer? Give a reason for the answer (2) Is the car exceeding the speed limit? Support your answer by means of a calculation (6) How will the frequency of the sound waves detected by the traffic officer be affected if the car travels at a lower constant velocity? Choose from GREATER THAN, LESS THAN OR THE SAME AS. (1) 6.3 6.4 6.5