Please Help! (Electric Charge and Electric Field) Consider point a which is 70 cm north of a -3.6 µC point charge, and point b which is 84 cm west of the charge (Fig. 17-23). (a) Determine Vba = Vb - Va. V = ____ (b) Determine Eb - Ea. Magnitude N/C = ____ Direction = _____ ° (counterclockwise from east is positive) Thanks for your help!