Let there be three charges whose locations are given with respect to a coordinate system - Charge q1=32μC is located at P1 (0,12) , Charge q2=20μC is located at P2 (−12,30.0) and Charge q3=4μC is located at P3 (−22,0) . All the coordinates have units in centimeters. a) Find the position vector that points from P1 to P3? ( Give X and Y coordinates ) b) Find the electric force on q2 due to q3 only? ( give X and Y coordinates )

Q3 = 39nC

In the corners of an isoceles triangle whose base is 60 cm and height is 40 cm, the point charges q1, q2 and q3 are placed (see picture)a. If q1 = +3 C; q2 = -5 C and q3 = +4 C, find the electric force acting on charge q4 = +2 C which is at the extension of the connecting line q1-q2, 10 cm to the right of charge q2.b. Also find the electric field at the point where the charge q4 is

The angle between the two short sides is 90°. The two short sides of the triangle have length a. Investigate the net force on the charge (q) in the lower right corner due to the other two charges (q, -q). As needed, assume a right-handed coordinate system shown below: (A) What is the magnitude of the net force on the charge in the lower right corner due to the other charges? Use symbols for the answer. (B) Make a sketch of the net force vector on the x-y axes below with the tail of the arrow at the origin. Label the angle with the x-axis. What quadrant does the vector lie in? Your picture should indicate the correct quadrant.