Two electrons separated by 1 cm 9 = 1.6 x 10^-19 C
m = 9.1 x 10^-31 kg
d = 1 cm
What is the electric force?

What is the gravitational force?

Which force will dominate the motion of the electrons?​

Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?