9. [-/3 Points] DETAILS SERPSE10 22.5.OP.018. MY NOTES ASK YOUR TEACHER The figure below shows the electric field lines for two charged particles separated by a small distance. (a) Determine the ratio q1/92. (b) What are the signs of q, and 92? 91 ---Select-- v 92 ---Select--- v Need Help? Read It Watch It8. [-/2 Points] DETAILS SERPSE10 22.4.OP.017. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) A ball is attached to a thread of length _ = 16.2 cm and suspended from the ceiling, as shown in the figure. A uniform electric field points to the right in the figure. When 0 = 17.30, the ball is in equilibrium. Find the net charge on the ball (in UC). E = 1.00 x 103 N/C m = 2.00 g HC (b) What If? If the electric field is suddenly turned off, what is the speed of the ball at the bottom of its swing (in m/s)? m/s Need Help? Read It