92 = ? E d2 = r/2 91 = +Q 450 d =r Two point charges, q1 and q2, are fixed at specific locations in space, as shown. q1 has positive charge +Q and is placed a distance r west of point X. q2 has an unknown charge and is placed at a distance r/2 north of point X. The net electric field at point X is determined to be 5 N/C in a direction 45 degrees north of east. What is the magnitude (not including the sign) of the charge q2? OQ 04Q O 1/4 Q O 1/2 Q O 2