Points A, B, and C are at the corners of an equilateral triangle of side 5 m. Equal positive charges of 5 µC are at A and B.
1) What is the potential at point C?
2) How much work is required to bring a positive charge of 5.00 µC from infinity to point C if the other charges are held fixed?
3) How much additional work is required to move the +5.00 µC point particle from point C to the midpoint of side AB?