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Re: [Phys-l] teaching energy



Carl Mungan wrote:
This suggests identifying rest mass energy with internal energy.
But that isn't really a clean third category, insofar as it
includes all of the hidden kinetic and potential energies of the
system. In turn, what is "hidden" depends on how closely you
are willing to look, ie. macroscopically (the whole system is
one object), mesoscopically (the system consists of a set of
blocks, springs, flywheels, planet, etc.), or microscopically
(molecules translating and rotating, atoms vibrating, and
maybe even electrons orbiting). Carl

Thanks Carl. I agree that what is "hidden" depends on how closely you
are willing to look. I was responding to Krishna Chowdary's original
question in which Krishna said *(I'm happy to limit to fundamental
particles)* and specified the *electron* as an example of a fundamental
particle. As such, the particles I had in mind were particles that I
think of as fundamental particles such as quarks and leptons.

Jeff Schnick