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Choose the best answer for each of the following questions. Useful Information. e = 1.602 x 10-"9 C electron mass = 9.109 x 1031 kg01 G = 6.67 x 10-" m'/(kg x s') k = 8.99 x 10'NmyC proton mass = 1.672 x 10-27 kg micro = 10%; nano = 109 Remember to ***watch units* 1. Consider three conducting spheres. Sphere A has charge +Q while B and C have no charge. Sphere A then touches sphere B, then separate. Sphere B is then used to touch sphere C, and then separate. Sphere A and C now touch, and separate. How much charge is on each sphere? a. +Q/3 on each sphere b. +Q/2 on A, +Q/4 on B, +Q/4 on C c. +Q/4 on A, +Q/2 on B, +Q/4 on C d. +3Q/8 on A, +Q/4 on B, +3Q/8 on C 2. In the diagram below, where might an electron experience no force? I IAI ICI 1 a. Point A b. Point B c. Point C d. It is impossible to experience no force 3. In the diagram below, where might the electric potential be zero? /To me Todaily balslong as wilt tis IAI I BI ICI I a. Point A c. Point C move b. Point B d. It is impossible to experience have zero potential 4. The value of g on Saturn is 10.9 N/kg. The weight of a 2.5-kg mass on Saturn is rhi do muigg lady a. 2.5 kg b. 4.4 N c. 11 N d. 4.4 kg. (e. 27 N 20 em -5.0 GC 5. In the diagram on the left, what is the charge on q if the electric potential at the dot is measured to be 3140 V? a. -5 nC b. 5 nC c. -10 nC d. 10 nC 6. In the diagram on the left, if the identical currents flow in 5.0 PC the opposite directions, then the magnetic field at point A is: a. Upward b. Downward c. Zero d. In or outward A 3- 25 r 7. In the diagram on the left is an antiproton (proton with a negative charge). What is the acceleration of the antiproton at - 500 m this instant? (Hint: determine F net!) a. 2.40 x 1010 m/s2 [up] b. 2.40 x 1010 m/s2 [down] F - 1090 V/m c. 2.15 x 10ll m/s2 [up] d. 2.15 x 10ll m/s2 [down] 5