What happens to the energy when you are holding a book?

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Discussion Overview

The discussion centers around the energy transformations involved when holding a book stationary, exploring concepts of chemical, kinetic, potential, and heat energy. Participants question the fate of energy that seems to be "lost" in this context.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant suggests that holding a book involves the use of chemical energy, questioning what happens to this energy since neither potential nor kinetic energy changes.
  • Another participant inquires about the fate of energy that is perceived as "lost," prompting further exploration of this concept.
  • A participant identifies four types of energy involved: kinetic, potential, chemical, and heat energy, explaining that while the book is held steady, kinetic and potential energies remain constant, and chemical energy is converted to heat energy released by the body.
  • There is a repeated inquiry about the understanding of "lost" energy, indicating a lack of clarity or consensus on this point among participants.

Areas of Agreement / Disagreement

Participants express uncertainty regarding the concept of "lost" energy, with some agreeing on the types of energy involved but not reaching a consensus on the implications or definitions of "lost" energy.

Contextual Notes

Participants do not fully define what is meant by "lost" energy, and there are assumptions about energy transformations that remain unexamined.

ali PMPAINT
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TL;DR
About the conservation of energy.
So, when you are holding a book by your hand, and not moving, you are using chemical energy(correct me if I am wrong), but neither does the potential energy increase, nor does the kinetic energy, so what happens to the chemical energy?
 
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What happens to all energy that gets "lost"?
 
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Ibix said:
What happens to all energy that gets "lost"?
Yes.
 
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ali PMPAINT said:
Yes.
That was a question, not a statement. Pretty much all lost energy becomes the same thing. Do you know what it is?
 
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ali PMPAINT said:
Yes.
As Russ says, I was asking if you know what happens to all "lost" energy, not confirming your question's intent.
 
There are four kinds of energy involved here- kinetic energy, potential energy, chemical energy and heat energy. As long as the book remains steady at a constant height, the kinetic energy is zero and the potential energy is constant. Chemical energy is produced in your body, particularly in your muscles. That goes into heat energy which your body releases in your breath and sweat.
 
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Ibix said:
As Russ says, I was asking if you know what happens to all "lost" energy, not confirming your question's intent.
Oh, sorry, no I didn't know until now.
 

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