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## Homework Statement

Three charges are arranged as shown in the diagram below. Their magnitudes are:

q1 = +2.5 x 10^-17 C

q2 = +3.0 x 10^-17 C

q3 = +3.5 x 10^-17 C

(its a right angle triangle, with 50 cm as the hypotenuse, 40 cm as the horizontal, and 30 cm as the vertical)

Figure image: http://img80.imageshack.us/img80/8029/fig.png [Broken]

Calculate the direction and magnitude of the force acting on q1.

## Homework Equations

Fe = kq1q2/r2

## The Attempt at a Solution

F(q1q2)= 2.7x10^-23N [Equation above]

F(q1q3)=8.75x10^-23 [Equation above]

I used polar... trig. Do I have to show my work D:? Its hell on text.

The answer i obtained was 1.1x10^-22 N [Up 12 degrees Left] Could someone verify?

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