Re: 4/3 problem resolution/Action-reaction paradox in pdf format

[Chuck Britton <britton@NCSSM.EDU>]

At 10:54 PM -0700 6/18/01, David Rutherford,  you wrote about Re: 4/3
problem resolution/Action-reaction paradox in p:


This does not make a frame inertial!

> Bob, I'm surprised at you :-). This is high school stuff. In the absence of
> external forces, since the net change in the momenta of the particles is
> zero in the CM frame, the motion of the center of mass of the particles is
> constant (or zero), i.e., inertial.



Please feel free to ignore this intrusion into your discussion.

I dunno if this comment is relevant to the present exchange - BUT,
I've got to wonder if there is an assumption here (explicit or
implicit) that the net charge of the (relevant) universe is zero. If
so, then the 'field lines' of these two electrons are securely
attached to some (+) charge whose motion is unknown.

If the net charge of the 'relevant' universe IS unbalanced, what CAN
we say about the E field(s) of these electrons????

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Chuck Britton                                   Education is what is left when
britton@ncssm.edu                               you have forgotten everything
North Carolina School of Science & Math         you learned in school.
(919) 286-3366  x224                            Albert Einstein,        1936