Problem A6:
In the figure above are two point objects.  The one on the left has a charge
of n1q.  The point object on the right has a charge of q.  The two point objects are separated 
by a distance  of n2d.  What is the electrical potential at a point located a distance d to the 
right of the object 
with charge q?  That is, What is n3 in the expression for V=n3 kq/d? 

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