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

Summary
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?
 

Ibix

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As Russ says, I was asking if you know what happens to all "lost" energy, not confirming your question's intent.
 

HallsofIvy

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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.
 
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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