All Questions
5
questions
4
votes
4
answers
96
views
How does potential energy increase without increasing matter?
It's a philosopher here - not a physicist, so please bear with me.
When I increase the potential energy of a spring by compressing it, I increase its mass according to special relativity.
But mass is ...
- 41
3
votes
1
answer
573
views
Internal energy and rest mass energy
when a cup of water is at rest, does the potential energy between water molecules contribute to the rest mass or just the kinetic energy of the molecules? Also, is it the same as asking whether the ...
- 51
0
votes
1
answer
68k
views
How to calculate KE using only mass and height [closed]
For our physics (high school level) group project, we were asked to modify a selected toy so that it produces an energy output of at least or roughly 110% (10% more) compared to the original toy.
Our ...
4
votes
1
answer
1k
views
Why does the Gravitational Potential energy formula indicate that heavier masses in the same point in the field have lower potentials?
$$ U = -\frac{Gmm_E}{r} $$
Intuitively, it'd appear that the further away two objects are, the greater their gravitational potential, and this is confirmed by the gravitational potential formula. The ...
- 63
2
votes
2
answers
1k
views
Does the potential energy related to a particle determines its rest mass?
Would it be possible to determine the rest mass of a particle by computing the potential energy related to the presence (existence) of the particle, if this potential energy could be determined ...
- 911