Part A Two small metal cubes with masses 2.0 g and 4.0 g are tied together by a 5.5-cm-long massless string and are at rest on a frictionless surface. Each is charged to +1.9 uC. What is the en Express your > View Availa i frictionless surface. Each is What is the energy of this system? Express your answer in joules. > View Available Hint(s) Emeh Submit Part B What is the tension in the string? Express your answer with the appropriate units. > View Available Hint(s) T= Value Units t on a trictionless surface Each is +1.9 uC The string is cut. What is the speed of 2g cube when the cubes are far apart? Hint There are two conserved quantities Make use of both Express your answer with the appropriate units. > View Available Hint(s) Value Units Submit Part D The string is cut What is the speed of the 4-g cube when the.cubes are far apart? Hint There are two conserved quantities Make use of both Express your answer with the appropriate units. > View Available Hint(s)

Part A Two stationary positive point charges, charge 1 of magnitude 3.10 nC and charge 2 of magnitude 1.60 nC, are separated by a distance of 46.0 cm An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges. What is the speed vfinal of the electron when it is 10.0 cm from charge 1? Express your answer in meters per second. > View Available Hint(s) 1 AZ中 να ΑΣφ Ufinal m/s S. Submit « Previous hp |3D

I Review | Constants The ammonia molecule (NH3) has a dipole moment of 5.0 x 10-30 C.m. Ammonia molecules in the gas phase are placed in a uniform electric field E with magnitude 1.4x106 N/C. Part A What is the change in electric potential energy when the dipole moment of a molecule changes its orientation with respect to E from parallel to perpendicular? Express your answer using two significant figures. ΑΣφ ? AU = J

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Item 9 A point charge with charge q1 = 2.80 μC is held stationary at the origin. A second point charge with charge q2 = -4.70 μC moves from the point (0.125 m, 0) to the point (0.250 m, 0.270 m ). Part A How much work is done by the electrostatic force on the moving point charge? Express your answer in joules. ► View Available Hint(s) W = 0.62558 Submit - ΑΣΦ Provide Feedback Previous Answers ? X Incorrect; Try Again; One attempt remaining J

Please answer the following question and post your work in pictures please.