Homework Help: physics

Posted by Anonymous on Thursday, February 28, 2013 at 9:08pm.

In moving out of a dormitory at the end of the sememster, a student does 1.8 104 J of work. In the process, his internal energy decreases by 4.2 104 J. Determine each of the following quantities (including the algebraic sign).

a) W

b) U

c) Q

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