Hello heroes, I need help with this practice question, please provide full clear steps, so that I can learn how to solve the problem on my own. thank you in advanced

3 (25 pts). Three charges of equal magnitude (7.00-uC) are placed at the vertices of a square that measures 5.00 cm on a side. (a) Draw E-field directions due to all three charges at points a and b. (8pts) (b) What is the direction of the resultant E field at point a without calculating? (2pts) (c) Find the magnitude and direction the resultant field at point b. (15 pts) q b a -q q 4 (25 points). Three-point charges, -2.00 JC, +4.00 uC, and +6.00 uC, are located along the x- axis as shown in the figure. (a) What is the electric potential (relative to infinity) at point P due to these charges? (12 pts) (b) If another charge q = 1.00 JC is released from rest at point P to infinity, what is final speed of the charge particle? (Take mass of q= 0.500x10-3 kg) (13 pts) P 0.200 m -2.00 HC +4.00 uq +6.00 HC 0.200 m 0.200 m