- #1

Pruddy

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**. Homework Statement**

Diagram: Please check the attachment. It has a diagram that will help solve the problem

#6)Point charges Q1 and Q2 are located at two vertices of an equilateral triangle. Point P is the third vertex.The length of each side of the triangle is 28.0 cm. Q1 = +26e, and Q2 = -14e

#7). Point charge, Q3 = +7e, is now placed at point P. Determine the potential energy of the configuration formed

by Q1, Q2 and Q3. (Assume that the potential energy is zero at infinity.)

## Homework Equations

V= k(q)/r, k= 9.99 x 10^9

## The Attempt at a Solution

#6)I found the potential energy the potential energy of both point a and point p. Using the distance r = 0.28cm. Then I sum the potential energy of both points to get the potential energy at P.

#7) I used thesame procedure for the second problem.

I will be very grateful, if anyone can help. Thanks a lot.