Group: sci.physics.particle
From: "CWatters"
Date: Wednesday, March 26, 2008 11:44 AM
Subject: Re: Potential Energy Question


"Y.Porat" wrote in message
news:c51c5fcb-9407-4a81-a0b8-1fd41aa01234@a70g2000hsh.googlegroups.com...
>------------------
>so you agree that energy can be transferred from one system
>to another one is only
>by collision ??
>
>ATB
>Y.Porat
>------------------------

I don't think I understand your question or what relevance it has to my
reply.