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Re: Question about light and heat



The definition I see in the 6th edition of Halliday, et.al. is (page 434, Chpt. 19)
"Heat is energy transferred between a system and its environment because of a temperature difference that exists between them."

Wor is similarly defined as energy transferred.... due to mechanical motion.
James Mackey


Bernard Cleyet wrote:
Even Feynman, et al.   A huge blooper on p. 5-9 (vol. II)  (QUANDOQUE BONUS DORMITAT HOMERUS)

bc

P.s. Their section 12-2 (vol. II) begins "The flow of heat; ..."

Joe Heafner wrote:

From: Tina Fanetti <FanettT@QUEST.WITCC.CC.IA.US>

1) "Heat" is NOT energy even if one erroneously wants to thin of "heat" as
a substance.  There is no such "thing" as "heat" -- "heat" is done  on a
system not pored into it.<<

HUH?
I am looking in Halliday, Resineck and Walker and it says that heat is transferred internal energy. Is this not saying heat is energy?

Lots of textbook authors don't get it right!

Cheers,
Joe Heafner - Instructional Astronomy and Physics
CVAC Home Page <http://users.vnet.net/heafnerj/cvac.html>
My Book <http://www.willbell.com/new/fundephcomp.htm>
My Home Page <http://users.vnet.net/heafnerj/>