Posted by **Anonymous** on Thursday, September 13, 2012 at 2:58pm.

A small sphere with a charge of 2.40 is attached to a relaxed horizontal spring whose force constant is 90.0 . The spring extends along the axis, and the sphere rests on a frictionless surface with its center at the origin. A point charge is now moved slowly from infinity to a point on the axis. This causes the small sphere to move to the position .

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