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Physics
Marcus Copeland
8 September, 22:27
How are energy, time, and power related?
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Dutches
9 September, 00:43
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Power = (energy) divided by (time)
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Kaden Hood
9 September, 01:30
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work is a measure of energy
If I have a pile of bricks that I want to move from my yard into the garage we would agree that I need energy to do this (work is force times distance so work is a measure of energy required to move 50 kg [mass with an acceleration toward the earth due to gravity] of bricks 10 meters into my garage)
How time and power relate is as follows:
If I want to move the 50 kg of bricks into the garage in 30 minutes, it will require a certain amount of power. If I want to do this in 5 minutes I will need even more power. Again, power is the amount of work (energy) done per unit time.
The math of it is:
F=ma
w = F*d
Power = w/t
(instantaneous power is the derivative of work with respect to time
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