What is gravitational force

  • Thread starter anand
  • Start date
37
0
What is gravitational forces' and electromagnetic forces' energy source?Don't they violate conservation of energy?
 

selfAdjoint

Staff Emeritus
Gold Member
Dearly Missed
6,764
5
Masses and charges, respectively. No.
 
37
0
Could you explain.What I meant was that why doesn't it ever get exausted?
 

russ_watters

Mentor
18,849
5,039
Originally posted by anand
Could you explain.What I meant was that why doesn't it ever get exausted?
Because they are forces, not energies. Energy is what is conserved.
 

jcsd

Science Advisor
Gold Member
2,085
11
Re: violation?

Originally posted by anand
What is gravitational forces' and electromagnetic forces' energy source?Don't they violate conservation of energy?
The energy source is potential energy.
 
49
0
this sounds like a pretty good place to ask this question. I have been wondering for sometime now if energy could be some how transfered between the two interacting objects in a gravitational or electromagnetic field. What I know about the two tells me no but I just wanted to make sure.



P.S. what about the nuclear forces?
 
Last edited:
354
0
I didn't understand the previous question, but I think that charges do violate COE. I think this because they continually emitt photons and I subsribe to the SED theory were these photon's energy source is the vacuum's virtual pariticle flux. And please, I don't want to here any more about how that can't be, that the virtual particle flux is statistical and so averages to zero over time. That is CED nonsense, and this is on the forefront of quantum mechanics, because SED explains why the equations work, instead of just giving them.
 

chroot

Staff Emeritus
Science Advisor
Gold Member
10,166
34
Obviously charges do not continuously emit photons. If they did, the entire universe would have an essentially infinite temperature.

Please, if you want to talk nonsense, don't do it here -- do it in the correct forum.

- Warren
 

russ_watters

Mentor
18,849
5,039
Originally posted by bdkeenan00
this sounds like a pretty good place to ask this question. I have been wondering for sometime now if energy could be some how transfered between the two interacting objects in a gravitational or electromagnetic field. What I know about the two tells me no but I just wanted to make sure.



P.S. what about the nuclear forces?
I'm not sure I understand it either but objects can most certainly transfer energy between them.
 
3,073
3
Classically, charges have an infinite self-energy. Two electrons have a potential energy -ke2/r. Quarks' colors have a constant, rather than inverse square distance force relation.
 
49
0
Originally posted by russ_watters
I'm not sure I understand it either but objects can most certainly transfer energy between them.
Thank you:smile: I apparently wasn't clear enough on my question. Okay what I asked is if you have say two charges(or two masses) there would be an electromagnetic force between the charges and a gravitational force between the two masses. I realize that each charge or mass would have a potenial energy because of its position in the gravitational(or in the case of the charges ,electromagnetic)field, and that this energy can be converted into kinetic(like when a ball falls it's stored potential energy is converted into kinetic energy as it accelerates downwards). So is there anyway in which the energy of one charge(or mass) can be transfered to the other( the two objects not being in physical contact of course)?

If you have already answered this question I am sorry for asking it again. I just wanted to make sure.
 
Last edited:
49
0
Originally posted by russ_watters
I'm not sure I understand it either but objects can most certainly transfer energy between them.
Thank you:smile:
 

russ_watters

Mentor
18,849
5,039
Still not sure, but it sounds like you are asking if a particles charge or gravitational field (warping of space) can change another's. Don't think so, but this is getting out of my depth.
 

Related Threads for: What is gravitational force

Replies
12
Views
3K

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving
Top