An infinitely thin uniformly charged rod lies on the x-axis as shown above.
The rod has a linear charge density lambda, a length of n2d and is held fixed in
space. The left end of the rod
is located a distance n1d from the origin. A small point object of mass m and charge q is
placed at the origin and released from rest. What is n3 in the expression for v2,
which is the square of the point object's speed at infinity?
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