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Re: CAUSALITY IN PHYSICS (was drag force)



Perhaps a nit-pick - but, to be consistent you should perhaps view the
electric field (Force) as the cause of current, rather than the dop.

PS. Current flows during the transient period, often before there may be a
definable dop - but there is a driving E (and or B ) field.

Bob

Bob Sciamanda (W3NLV)
Physics, Edinboro Univ of PA (em)
trebor@velocity.net
www.velocity.net/~trebor
----- Original Message -----
From: "Ludwik Kowalski" <KowalskiL@MAIL.MONTCLAIR.EDU>
To: <PHYS-L@lists.nau.edu>
Sent: Monday, October 09, 2000 9:45 PM
Subject: Re: CAUSALITY IN PHYSICS (was drag force)


In my presentations F is a CAUSE of acceleration. Mass is the
same no matter how large the force (classically). A given force
acting on a different m produces a different a. Simultaneity and
rigidity are implied. Is this wrong in the first physics course? If
so then why? Likewise a dop, for example from a battery, is a
CAUSE of current. That is a common approach, I suppose.
Ludwik Kowalski