Posted by Lisa on Friday, February 19, 2010 at 10:40pm.
This not about physics.
Use graph paper or an straight-edge with a right angle corner to draw two lines at right angles meeting at a point. Make the two lines of equal length. Draw the hypotentuse between the other two ends of the lines. If you choose a scale that calls the hypotenuse length 1 meter, the two equal sides will have a length of 0.707 meters. 1/(sqrt2)
In the figure, charge = 2.1 × is placed at the origin and charge is placed on the -axis, at = -0.20 m. Where along the -axis can a third charge be placed such that the resultant force on this third charge is zero?
Express your answer using two significant figures.
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