A point charge q1=-4.00nC is at the pointx=0.600 meters, y=0.800 meters, and a second point charge...

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A point charge q1=-4.00nC is at the pointx=0.600 meters, y=0.800 meters, and a second point charge q2=+6.00nC is at the point x=0.600 meters, y=0 meters. (A) Calculate the magnitude E of the net electric field at the origin due to these two point charges. (B) What is the direction, relative to the negative x axis, of the net electric field at the origin due to these two point charges? (C) Where would a third charge (q3=8.00 nC) need to be placed to have the net electric field at the origin be equal to zero? A point charge q1=-4.00nC is at the pointx=0.600 meters, y=0.800 meters, and a second point charge q2=+6.00nC is at the point x=0.600 meters, y=0 meters. (A) Calculate the magnitude E of the net electric field at the origin due to these two point charges. (B) What is the direction, relative to the negative x axis, of the net electric field at the origin due to these two point charges? (C) Where would a third charge (q3=8.00 nC) need to be placed to have the net electric field at the origin be equal to zero?