.. An electron is placed (starting at rest) at the vertical negative plate across an electric field from a vertical positive plate. When released, the electron moves horizontally across the field and strikes the positive plate with a velocity of 4.00 x 109m/s. ) Determine the potential difference between the two plates.(3 marks) d) If the distance between the two plates is 3.00 cm, find the electric field strength.(3 marks) e) Determine the acceleration of the electron within the electric field