Physics, 30.06.2021 20:20, haileysolis5

An opera singer in a convertible sings a note at 700 Hz while cruising down the highway at 90 km/h . The speed of sound in the air is 343 m/s. 1. What is the frequency heard by a person standing beside the road in front of the car?
2. What is the frequency heard by a person standing beside the road behind the car?

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