Two point charges (q1 = -3.3μc and q2 = 7.6 μc) are fixed along the x-axis, separated by a distance d = 7.8 cm. point p is located at (x, y) = (d, d). be sure to use a vector approach to answer these problems. it also limit the number of calculations since sometimes you can neglect one of the charge's effects due to its location relative to the point in question.