Two point charges are placed on the x axis as follows: charge q1 = +4 nC is located at x = 0.2m, and charge q2 = +5nC is located at x = -0.3m (that is negative 0.3m). What are the magnitude and the direction of the net (resultant) force exerted by these two charges on a negative point charge q3 = -0.6nC located at the origin>? (k = 8.99 x 10? N*m²/C²)