[Phys-L] Re: collision question

[Bernard Cleyet <anngeorg@PACBELL.NET>]

"Some is used to deform the can (mechanical work)."

This "flows" into PE.  This is recovered when annealed.



bc



Ludwik Kowalski wrote:

> On Friday, Feb 18, 2005, at 14:08 America/New_York, Herbert H Gottlieb
> wrote:
>
>
>
> > Forget collisions. Let's make it a bit more simple:
> > If it takes mechanical energy to step on an empty tin can and crush it,
> > Some of this energy is released as heat to the surroundings during the
> > crushing. Where does the rest of the energy go?
>
> Some is heat (thermal energy) to be found in the crashed metal. Some is
> used to deform the can (mechanical work). A tiny fraction appears as
> sound.
>
> Ludwik Kowalski
> Let the perfect not be the enemy of the good.