Physics, 06.05.2021 06:00, ashleywoo21361

A train at rest emits a sound at a frequency of 997 Hz. An observer in a car travels away from the sound source at a speed of 30.9 m/s. What is the frequency heard by the observer? Assume the speed of sound in air to be 346 m/s.
Answer in units of Hz.

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A train at rest emits a sound at a frequency of 997 Hz. An observer in a car travels away from the s...