Formula for gravitational energy

Click For Summary

Discussion Overview

The discussion revolves around the concept of gravitational energy, particularly in the context of massive bodies being destroyed or colliding, and the potential conversion of this energy into gravitational radiation. Participants explore the relationship between gravitational energy and other forms of energy, as well as the measurement of gravitational radiation resulting from such events.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant seeks a formula to quantify gravitational energy in relation to other energies when a massive body is destroyed, questioning if mass is simply converted into energy via E=mc².
  • Another participant expresses confusion over the term "gravitational energy" and questions the allocation of energy into categories like gravity and electricity, correcting a typo in the energy equation to E=mc².
  • A different participant rephrases the question to focus on measuring gravitational radiation produced when two bodies collide and are "totally destroyed," suggesting this may clarify the original inquiry.
  • One participant challenges the notion of total destruction in collisions, asserting that matter is rearranged rather than destroyed, and mentions gravitational effects from cosmic rays in matter/antimatter reactions.
  • Another participant references the LIGO project, speculating that a small percentage of the original bodies' potential gravitational energy is converted into gravitational radiation and inquires about quantifying this energy release in ERGs.

Areas of Agreement / Disagreement

Participants express varying levels of understanding and agreement on the concepts discussed, with some confusion regarding terminology and the nature of energy conversion. There is no consensus on the original question or the specifics of measuring gravitational radiation.

Contextual Notes

Participants highlight potential misunderstandings in the phrasing of questions, and there are unresolved issues regarding the definitions of gravitational energy and the conditions under which energy is converted during collisions.

wolram
Gold Member
Dearly Missed
Messages
4,411
Reaction score
551
i have looked on the net for a formula that would give me an idea
of how much gravitational energy verses other energies is given
of when a massive body is destroyed, is there such a formula?
or is it just that the mass of the body is converted into energy by
E=M^2 and the gravitational energy that, that the origonal body
exhibited?
 
Physics news on Phys.org
I have no idea at all what this question means!

What do you mean by "gravitational energy"? Is there any reason to think that the energy contained in a body can be allocated to "gravity", "electricity", etc?

"or is it just that the mass of the body is converted into energy by
E=M^2" Typo here: E= M c^2.

Yes, there is not differentiation into "types" of energy.
 
not very well posed and typos also, maybe if i ask,
if two bodies collied and are totally destroyed, gravitational
radiation is given out, "hopefully", how would the total amount of this radiation
be measured? i hope this makes more sence.
 
Originally posted by wolram
not very well posed and typos also, maybe if i ask,
if two bodies collied and are totally destroyed, gravitational
radiation is given out, "hopefully", how would the total amount of this radiation
be measured? i hope this makes more sence.

Huh? If two collide, they are not totally destroyed. If you look at collisions, matter is rearranged, not destroyed.

If you're referring to a matter/antimatter reaction, you should still get gravitation from the cosmic rays that are formed from the colision.
 
significant or not the LIGO project is attempting to detect GRAVITATIONAL
RADIATION, so how are the parameters set, i would WAG that less
than the origonal bodies "potential gravitational energy"
is converted into gravitational radiation, maybe 10% or less,
so has anyone who can understand my ramblings any idea of how
many "ERGs or what ever" of gravitational energy is release
when a mass is converted to energy?
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 16 ·
Replies
16
Views
2K
  • · Replies 125 ·
5
Replies
125
Views
8K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 0 ·
Replies
0
Views
1K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 28 ·
Replies
28
Views
2K
  • · Replies 82 ·
3
Replies
82
Views
7K
  • · Replies 35 ·
2
Replies
35
Views
3K