OT: The 10th Demention

[Raapys]

Kinetic energy is NOT all energy.
A compressed spring isn't hotter or moving any faster than a relaxed one. And that the stretched slingshot dosen't move either... and how about all that chemical potential energy in your car's fuel tank?

You're right, I wasn't thinking.

If you are moving outwards, you lose kinetic energy and speed, but gain potential energy for being higher up and having farther to fall.

I see what you're saying, but I mean, the 'potential energy' you are talking about is a product of gravity. What when an object's speed does exceed the escape velocity; where does the kinetic energy the object loses on the way out, because of gravity, go? Since the object will never be stopped by that mass's gravity once it's reached e.v. that means no potential energy was created but alot of existing energy was lost, or?

[Suicide Junkie]

Its gravitational potential energy. If the object falls down into any gravitational well, that turns back into kinertic energy.

What goes up does *not* have to come back down. That's the point of escape velocity.

You recall those distorted funnel grid paper things that are always used on tv to show gravity fields?
The height represents the potential energy. If the object moves into the depressions, its potential energy is decreasing. In a vaccuum, that pretty much all turns into kinetic energy and back when the object orbits around.