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Answer in units of V. charge at B to infinity L 010 10.0 points Two charges are located along the z-axis. One has a charge of 6.2 C, and the second has a charge of -3.1 C If the electrical potential energy associ- ated with the pair of charges is -0.042 J, what is the distance between the charges? The value of the Coulomb constant is 8.98756 x 100N.mº/C and the acceleration due to gravity is 9.81 m/s Answer in units of m. 011 (part 1 of 2) 10.0 points Three point charges + are placed at corners of a square with sides of length L. 8 CF B А What is the potential at point A? B How much work is required to bring the + charge from infinity to point B? 1. W ky V2 12 ke? 2. W V2 L2 kq² 3. WE 21 kq² 4. W V2L ko? 5. W= 41 kat 6. W 212 kq² 7. W L ko 8. W 12 ko 9. W 212 10. W ko? 12 013 10.0 points A charged particle is connected to a string that is is tied to the pivot point P. The particle, string, and pivot point all lie on a horizontal table (consequently the figure below is viewed from above the table). The particle is initially released from rest when the string makes an angle 60° with a uniform electric field in the horizontal plane (shown in the figure). 1. V = 2 kg? = 2 2. V = (2+ a) * 4. V = 2 vzhodne 3. Vko L 2 2 kq² 5. V = 2 kg be 7.v = (2+12) 22 L 6. V = 2 ko 12 V ko 8. V = 2 v2 kg I? 9. V = 2, V3 kg I 10. V = (2+ 1 ko V2 L 012 (part 2 of 2) 10.0 points Now place a charge at A and move the +