Answer all parts please

1-(15 points). Reference to the figure below, there are three situations in which two charged particles are fixed in place on an axis. Take distance between two charges = 0.7500m and q = 7.00 HC In which situations is there a point to the right of the particles where a third charge particle (q.= 2.00uC) will be in equilibrium? Check each case with a free body diagram and find the distance of the third particle for the right case. +q -3q a. +3q -q b. -q +3g C