(20 points) 3) Consider two electric charges, each with of charge q, and located at (0,0, z.) and (0,0, -zo). Choose a suitable closed surface surrounding one of the charges and calculate the force on it by integration of the Maxwell stress tensor.Note: you may find useful the following integral: 1+2 82 (1+2)3 d's = - 4 (1 + 82 ) 2