Three identical, conducting spheres are each placed at the points of an equilateral triangle (60 ∘ interior angles) 4 cm apart. Initially, sphere A has a charge of q ∧=+3μC, sphere B a charge of qₐ=+5μC, and sphere C has a charge of qc_cm−2μC. The spheres are then touched together and replaced to their original locations. After the spheres are replaced, what is the total force acting on sphere A? Remember, as they are sphere you can treat them as point charges.