Which of theses statements are true about the theory of plate tectonics and the theory of continental drift a) the theory of plate tectonics doesn't explain how continental movements could occur b) the theory of tectonics tells exactly where the continents were before pangaea divided c) the theory of plate tectonics proves the theory of continental drift completely wrong d) the theory of plate tectonics gives the method by which continents can move as part of plates

An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.