richard261 richard261

26-04-2024
Physics

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An opera singer in a convertible sings a note at 800 Hz while cruising down the highway at 95 km/h. The speed of sound in the air is 343 m/s. What is the frequency of the note heard by a person standing on the side of the road?
1) 800 Hz
2) 850 Hz
3) 900 Hz
4) 950 Hz

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