Question

PLEASE HELP ME WITH MY EXTRA CREDIT HOMEWORK PROBLEM, I NEED ALLTHEEXTRA CREDIT POINTS THAT I CAN GET, THANK YOU FOR YOURTIME.

A charge Q₁ = -1.6 x10^-6C is fixed onthex-axis at +4m, and a charge Q₂ = +9 x10^-6Cis fixed on the y- axis at +3.0m.

a) Calculate the magnitude ans direction of the electricfield E atthe origin O due to the two charges. Draw andclearly label thisvector on the coordinate axis.

b) Calculate the electric potential V at thee origin.

A charge Q₃ = -4 x 10^-6C is brought fromavery distant point by an external force and placed attheorigin.
c) On the axis above, indicate and clearly label the directionofthe force on Q₃ at the origin.

d) Calculate the work that had to be done by the externalforce tobring Q₃ to the origin from the distant point.

PLEASE HELP! I WILL POST EXTRA POINTS FOR YOU AS I AM APLATINUMMEMBER!