The frequency of a wave becomes higher due to the object moving at a fast pace coming towards you with shorter wavelengths (depending on the speed) aka the Doppler Effect.
Hope this helps
B) equal in magnitude but opposite direction
Answer:
When the speed is changing is the correct answer
Explanation:
Because acceleration is rate of change of velocity
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Answer:
no because the car is in the rest so this not a acceleration
The independent variable is b the amount of chores you do