The answer is
Pitch of the buzzer increased (higher tone) as it moves towards the observer
Well you of course have different kinetic energies with the two speeds.
Kinetic energy = (1/2)*mass*velocity^2
The vehicle's mass is the same in both cases, so we can ignore that as well as 1/2 since it's a constant.
So we have (30)^2 vs (60^2)
which is 900 vs 3600
So having 60 mph compared to 30 mph is 4 times the kinetic energy.
Answer:
D.
For every action there is an equal and opposite reaction.
Explanation:
im doing the same one lol
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