Solve and answer all parts

Problem 1: Consider two points in an electric field. The potential at point 1, Vy, is 28 V. The potential at point 2, V2, is 198 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. Expression : AU = Select from the variables below to write your expression. Note that all variables may not be required. a, p, AU, 0, d, e, g, h, i, m, me, P, t, V1, V2 Part (b) Find the numerical value of the change of the electric potential energy in electron volts (eV). Numeric : A numeric value is expected and not an expression. 40 = Part (c) Express v2, the speed of the electron at point 2, in terms of AU, and the mass of the electron me. Expression V2 Select from the variables below to write your expression. Note that all variables may not be required. a, B, AU, V, 0, a, d, e, g, h, i, j, k, m, me, P, S, t, V1, V2 Part (d) Find the numerical value of v2 in m/s. Numeric : A numeric value is expected and not an expression. V2= Problem 2: Suppose you have an electric field between two parallel conducting plates separated by 1.2 cm and having a potential difference (voltage) between them of 1.5 x 104 V What is the strength of such an electric field in newtons per coulomb? Numeric : A numeric value is expected and not an expression. E= Problem 3: The voltage across a membrane forming a cell wall is 76 m V and the membrane is 8.5 nm thick. What is the electric field strength in the cell wall, in volts per meter? Numeric : A numeric value is expected and not an expression. E =