Question 14 (1 point) q= - 2.6 HC q= - 3.9 uC q= + 1.8 uC A B C 5.0 cm 6.0 cm The net electrostatic force on sphere A that is caused by the charges on spheres B and C is N A Enter the two-digit magnitude, a space, then the direction (left, right, up or down). ie: 0.0 upQuestion 15 (1 point) A conducting sphere has a net charge of -4.39 x 10-6 C. The number of excess electrons on the sphere is Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10