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Old 03-29-2007, 09:07 PM
MediaPA MediaPA is offline
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Join Date: Dec 2004
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Default Re: Physics Q (x post)

I'm really struggling with this because seems that everything balances (except a resultant effects of the spin itself). Going with the perfect spin (magnets perfectly aligned 100% of the time)

Friction should balance throughout the system. The angular velocity at any point on one half of the magnet system = the angular velocity at the reflected point (opposite direction). And friction being the result of Kinetic energy *coefficient of friction

EMF forces would also seem to balance in a similar way (NS::SN alignment so they are attracted to each other through the glass).

The spin seems to be the only reason as it is a tendency in other spinning object systems. IE spin a ball in place, push it forward, it will exibit the same tendency, going in the direction of spin.

A curveball manages to create a high and low pressure zone which moves the ball in the air as it goes to the plate, causing it to break.

Basically, I'm just being really stubborn on my thinking in this situation as to what force is not balanced resulting in the movement.
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