azertyqwerty123
19.03.2021 •
Physics
A train is moving at a speed of 31 m/s toward a stationary observer at a train station. The train whistle blows with an actual frequency of 348 Hz. What horn frequency is heard by the engineer (riding on the train)?
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Ответ:
C.
Explanation:
they deal with problems, that have to do with food- it best fits.
Hope that helps!