Three charged metal spheres, q, = 75.40 nC, :12 = 3.02 nC, and L73 = 72.56 ml, are arrayed in the xy plane so that they form an equilateral triangle with d = 12.0 cm, as shown in the gure. what is the net electrostatic force on the sphere at the origin? r=(_x Your response differs from the correct answer by more than 10%. Double check your calculations. N):A ( 7,23e-6 x Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. N)f '13 12.0cm '11 '12