**A positive charge Q1 = 7.4 pC is located at a point X1 = -2.0 m, a negative charge Q2 = -9.7 PC is located at a point X2 = 3.0 m and a positive charge Q3 = 2.1 PC is located at a point X3 = 9.0 m.
a. Draw free body diagrams for the electric force acting on Q1, Q2 and Q3.
b. Find the magnitude of the force between Q and Q2.
c. Find the magnitude of the force between Q- and Q3.
d. Find the magnitude of the force between Q2 and Q3.
e. Find the magnitude and direction of the net electric force on charge Q1.
f. Find the magnitude and direction of the net electric force on charge Q2.
g. Find the mayhitude and direction of the net electric force on charge Q3.