Physics Duel

Carlos and I had this debate for about 2 weeks: say you take a hula hoop and distribute charge unifromly over its surface. Now take a small test charge and place it anywhere within the plane of the hula hoop (not necessarily at the center). Will the charge feel a net electrical force acting on it? Carlos said no, I said yes, and here we are in my theoretical linear algebra class duking it out. Believe it or not, we're actually the two coolest kids in that class...

 

(By the way, I was so right :-)

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Uploaded on April 7, 2007
Taken on April 7, 2007