(8%) Problem 1: Consider two points in an electric field. The potential at point 1, V1, is 39 V. The potential at point 2, V2, is 152 V. An electron at rest at point 1 is accelerated by the electric field to point 2. 25% Part (a) Write an equation for the change of electric potential energy AU of the electron in terms of the symbols given. AU-e(V2 V1) Correct! 25% Part (b) Find the numerical value of the change of the electric potential energy in electron volts (eV). = - 113 AU-113.0 Correct! 25% Part (c) Express v2, the speed of the electron at point 2, in terms of AU, and the mass of the electron me. V2 = 2 e (V2 - V1 )/mel () Grade Summary Deductions Potential Submissions 0% 100% Attempts remaining: 7 8 9 HOME a d e ^ 4 5 6 g h i j * 1 2 3 k m me P + S t V1 V2 0 () BACKSPACE END DEL CLEAR Submit Hint Feedback I give up! (0% per attempt) detailed view 123 + 0% 0% 0% 4 0%