Which coefficients (in order) would BEST balance this chemical equation?

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.

How long will it take a car traveling of a constant speed of 45m/s to cover the distance of a 2.5km?

How are elastic and inelastic collisions different? give two or more ways. your answer should have at least 2 sentences.