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August 28, 2015

Homework Help: physics- response to bobpursley

Posted by matt on Wednesday, June 24, 2009 at 8:48pm.

which is false?

Consider the following processes:

I.
Energy flows as heat from a hot object to a colder object

II.
Work is done on a system and an equivalent amount of energy is rejected as heat by the system

III.
Energy is absorbed as heat by a system and an equivalent amount of work is done by the system

is it just II?
Responses

physics - bobpursley, Wednesday, June 24, 2009 at 8:45pm
III is false also. There is no need for work to be done, it could have been stored as potential energy (like in mech or chem energy).

I did this answer (II and III false) but it was wrong.... is it just III that is false?

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