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No, viewpoint number 2 is not valid. If gravitational potential energy canSNIP
not be in the ball because the presence of the Earth is necessary for there
to be GPE. Now it is certainly associated with objects (note the plural),
but then you have #3.
Now with kinetic energy, the energy is in the object. With thermal energy,SNIP
the energy is in various physical places such as the two objects that are
rubbing against each other...
John M. Clement
Houston, TX
On 10/03/2006 09:48 AM, Robert Cohen wrote:
I've been skimming through the posts and I think there are three points
of view:
1. Energy is associated with fields.
2. Energy is associated with objects.
3. Energy is associated with systems of objects.
I agree.
All three viewpoints are valid, and can be considered a chain of
successive approximations, in the order (1), (3), (2).