Question

Two alpha particles are at a distance of 0.1 English trams, how many repulsive force working between them, from the gravitational force

Answer 1

1. The problem statement, all variables and given/known data

An alpha particle has a mass m = 6.64x10^-27 kg and a charge q = +2e. Compare the force of electric repulsion between two alpha particles and the force of gravitational attraction between them. Explain briefly why the gravitational force is ever significant, given its seeming insignificance here.

2. Relevant equations F=qE, F=kqq/r, F=ma 3. The attempt at a solution coloumbs law cant be applied here since im not given r and i cant think of a way to obtain the E_field or a in f=ma when i equate qE=ma (maybe Electric flux can be found using gauss's, but i dont think thats the right way to go)