Find the work done by the electric field on a charge of 2.60 nC that travels from point B to point A.

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.

think its the third option

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle