All Questions
4
questions
0
votes
1
answer
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Positional is not equivalent to conservative in dimensions greater than one
I've just started writing dynamical systems and I was trying to find an example to show that if we are in a $2$ or $3$ dimensional real space "positional do not implies conservative".
In ...
- 147
7
votes
3
answers
933
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Are Van Der Waals Forces related to the Van der Waals Equation?
In a physics class, I learned about Van Der Waals forces that allow geckos to stick.
Do they have any relation to the Van Der Waals Equation relating gas pressure to temperature and volume?
- 151
5
votes
1
answer
2k
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What exactly is conservative vector field?
I'm studying calculus, but since the example involved a physical concept. I will ask here:
This is how it goes:
This means that in a conservative force field, the amount of work
required to move ...
- 195
8
votes
4
answers
12k
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The elusive difference between force and impulse
Impulse is defined as the product of a force $F$ acting for a (short) time $t$, $J = F*t$, and that is very clear.
What I find difficult to understand is how a force can exist that doesn't act for a ...
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