All Questions
7
questions
2
votes
4
answers
405
views
Mass-energy equivalence and gravitational potential energy
If mass and energy are equivalent, and if gravitational potential energy is energy, why doesn't an object have more mass when it is at a higher altitude? Does the mass-energy equivalence work for ...
- 181
1
vote
0
answers
57
views
Negative potential energy
In fusion of hydrogen into helium, hydrogen has negative potential energy which adds up and results in a mass defect..
Doubts:-
Why is there negative potential energy between the nucleons in a ...
- 21
3
votes
2
answers
1k
views
Can the mass of a hydrogen atom be calculated in a gauge-invariant way?
Please excuse the lengthy question. It involves an interesting controversy which has arisen in discussions on this site:
Energy/mass of Quantum Vacuum
Relative potential energy vs Absolute potential ...
- 51.7k
-2
votes
1
answer
224
views
Is mass equivalent to potential energy? [closed]
In other words, do we really need the concept of mass? If so, why?
- 1
14
votes
5
answers
8k
views
Does potential energy of an object increases its relativistic mass?
I know that in relativistic condition the increase in kinetic energy of an object increases its relativistic mass as $$m=\frac{m_0}{(1-v^2/c^2)^{1/2}},$$ and mass is another form of energy.
So my ...
- 141
0
votes
2
answers
848
views
Are black holes an infinite source of energy? [duplicate]
Black holes are considered particularities because in a determined point in time they are pointless, as consequence there are some mass in a null space so the density become infinite. Finally if ...
- 775
4
votes
3
answers
1k
views
storing energy (as mass)
When chemical energy is released mass is reduced, if only by a negligible amount. Presumably that's true for all energy. And presumably that works in reverse as well: storing energy involves an ...
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