Consider two points in an electric field. The potential at point 1, V1, is 36 V. The potential at point 2, V2, is 196 V. An electron at rest at point 1 is accelerated by the electric field to point 2. Part (a) Write an equation for the change of electric potential energy U of the electron in terms of the symbols given.
Part (b) Find the numerical value of the change of the electric potential energy in electron volts
Part (c) Express v2, the speed of the electron at point 2, in terms of dU, and the mass of the electron me.
Part (d) Find the numerical value of v2 in m/s.