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The potential due to a set of point charges on a cartesian grid takes the form:...

The potential due to a set of point charges on a cartesian grid takes the form: 36/sqrt((x+1)^2+y^2)-45/sqrt(x^2+(y-2)^2) (a) Determine the units for the numerator if the x and y positions are measured in cm. (b) Determine the position and charge of both charges.

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