HC electric forces on these beads? A. The force on A is 120 times the force on B B.> The force on A is exactly equal to the force on B C. The force on B is 4 times the force on A The force on A is 20 times the force on B Questions 9-10 are based on the following: Two parallel metal plates separated by 0.01 m are charged to create a uniform electric field of 3.5 x 10 N/C between them, which points down. A small, stationary 0.008 kg plastic ball m is located between the plates and has a small on it are the force of gravity and of the electric field. (Use Coulomb’s constant k 9 10 N-m2/C, charge of an electron 1.6x 10-19 C, charge of a proton 1.6 x 10-19 C, mass of a proton = 1.67 x 1027 kg, mass of an electron-9.1 1 x 10″31 kg and acceleration due to gravity g = 9.8 m/s) charge O on it. The only forces acting 9. What is the charge on the ball? A. -250 C B. 250 C C. 3.8x 10 C D. -2.2 x 10 C 10. How would the acceleration of an electron between the plates compare to the acceleration of a proton between the plates? as large, and in the opposite direction A. One thousand eight hundred thirty times B. The square root times as large, and in the opposite direction C. Twice as large, and in the opposite direction D. The same magnitude, but in the opposite direction 11. A positive charge Q = 2.3 x 10-11 C is 102 m away from a negative charge of equal magnitude. Point P is located equidistant between them. What is the magnitude of the electric field at point P? (Use Coulomb’s constant k = 9 x 109 NmTOP) A.9.0 × 103 N/C B, 4,5 x 103 N/C C. 3.0 x 104 NC D’1.7×10″ NC 128 Copyright © 2018 Sterling Test Prep. Any duplication is illeg