Re: List Reborn

From: <Christopher>
Date: Wed Oct 19 2005 - 14:54:00 EDT

On Oct 18, 2005, at 11:41 PM, Steve McKenzie wrote:

> A momentum change does not necessarily result in a change of energy
> level.

I think it does. Any change in momentum represents a change in velocity or a change in mass, Since kinetic energy varies with both mass and velocity, any change in either represents a change in kinetic energy.

KE = mv^2/2 Æ(KE) = 0.5v^2Æm + mvÆv

Usually mass stays constant so ÆKE = mvÆv In that case the change in momentum = m(v + Æv) - mv = mÆv.
Christopher Wright P.E. |"They couldn't hit an elephant at <a href="/group/PipingDesign/post?postID=s1rPNwTbVECI_rdX0WzCZY15n1hK2nl6uqIaa3gVzcbMDfgmB93Wp7vb84MsByEodtNKDJuDTh0PefzH">chrisw@skypoint.com</a> | this distance" (last words of Gen.

.......................................| John Sedgwick, Spotsylvania

1864)
<a href="http://www.skypoint.com/~chrisw/">http://www.skypoint.com/~chrisw/</a> Received on Wed Oct 19 14:54:00 2005