Kinetic energy loss in disintegrated matter

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Discussion Overview

The discussion centers around the fate of kinetic energy when an object, such as a baseball, is disintegrated upon impact with a massive body like the sun. Participants explore the implications of kinetic energy conservation, the transformation of energy during disintegration, and the relationship between speed and energy release in this context.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant questions whether the kinetic energy of an object survives disintegration and how it relates to energy released as heat and light upon impact with the sun.
  • Another participant suggests that the "missing" kinetic energy typically converts to heat, indicating that more kinetic energy results in more heat at the end.
  • A different viewpoint states that if the energy released is the same for both baseballs, the kinetic energy is transferred to the kinetic energy of the individual atoms resulting from disintegration and the atoms in the sun that they collide with, dismissing the involvement of dark energy or dark matter.
  • One participant references Feynman's lectures to emphasize the importance of energy conservation and the idea that more initial energy leads to more energy to account for after disintegration.
  • Another participant proposes that considering a single particle collision may clarify the situation, noting that faster particles involve more energy in collisions and that energy conservation applies to each individual collision during disintegration.
  • This participant also mentions that the disintegration of a baseball involves breaking chemical bonds, which contributes to the total energy involved and must be accounted for in energy conservation discussions.

Areas of Agreement / Disagreement

Participants express differing views on the specifics of kinetic energy transformation and the implications of energy conservation during disintegration. There is no consensus on the exact mechanisms or outcomes of energy release and transformation.

Contextual Notes

Participants reference concepts such as energy conservation, the role of chemical bonds, and the nature of collisions, but the discussion does not resolve the complexities involved in these processes or the assumptions underlying their arguments.

David12357
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What happens to the kinetic energy when an object is disintegrated? Does it survive?

For example, if I throw a baseball at the sun at 100 mph, I will get X amounts of heat energy released and X amount of light as it burned up before contact. If I threw another baseball 100,000 mph into the sun, do I get the same X amounts of light and heat released, or is it higher relative to us since it was going faster? I thought it was the same energy release.
If the energy released is the same for both baseballs, where does the kinetic energy go? Is it traveling through space in another form, i.e dark energy or dark matter? I am puzzled on this concept if you scale this scenario up to very large objects in space, which have considerable influence on space/time.
 
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The "missing" kinetic energy generally ends up as heat, and there is more heat at the end if we started with more kinetic energy at the beginning.
 
David12357 said:
If the energy released is the same for both baseballs, where does the kinetic energy go?
It goes into e.g. kinetic energy of the individual atoms that the baseballs disintegrate into, and the atoms in the sun that those atoms collide with. Dark energy and dark matter are not involved in these processes.
 
David12357 said:
I thought it was the same energy release.
It is, perhaps, instructive to read what Feynman said about energy conservation here.
http://www.feynmanlectures.caltech.edu/I_04.html
The more toy blocks you start with, the more toy blocks you have to look for when all is said and done.
 
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David12357 said:
If I threw another baseball 100,000

For me, rather than begin by contemplating a baseball, its easier to think about one particle that collides with a different particle emitted by the sun. Its evident that the faster the incoming particle is moving, the more energy will be involved in the collision, and of course all the energy will be conserved in the collision.

A baseball is a collection of particles; each single particle making up the baseball will be involved in its own series of collisions, each individual collision conserving energy. The disintegration of the baseball involves chemical bonds between atoms being broken, which is part of the total energy involved that must be conserved, but it doesn't fundamentally change anything about conservation of energy.

Any macro object in the universe as far as I know is a collection of individual particles bound together by some force and those bonds have potential energy which needs to be accounted for if they are broken.
 

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