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Results tagged with potential-energy
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user 23651
Potential energy is the energy of a body or a system due to the position of the body or the arrangement of the particles of the system.
14
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1
answer
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What do we mean when we talk about Gibbs Free Energy?
Before I start, I'm aware that this question may be better suited on the Chemistry or Biology site, but it's my belief that physicists are more likely to have a clear understanding on what certain ter …
- 1,760
9
votes
2
answers
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What can be known about the formulas for energy only from the fact that it is conserved?
The question is to figure out how the energy can be derived knowing just one thing:
There is a quantity called Energy that is conserved over time.
The goal is to get an equation that somehow imp …
- 1,760
1
vote
Potential energy during vertical fall
NOTE: This comment was too long so I'll make it an answer.
I would assume that the amount that the spring contracts is negligible compared to the distance that the mass has fallen.
But anyway, regar …
- 1,760
7
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What can be known about the formulas for energy only from the fact that it is conserved?
Let $E$ denote a quantity that does not change over time (from the first principle).
Consider a ball with mass $m$ dropped from a height $h$. As the ball drops, its speed changes due to the gravitat …
- 1,760
2
votes
3
answers
363
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How come we talk about gravitational potential energy and not gravitational potential?
With regards to gravity the equation learned is $$U=-\frac{GMm}{r}$$
And the relationship to force is $$F=-\frac{dU}{dr}$$
In electrostatics we instead talk about electric field and electric potentia …
- 1,760