Question

Assume that in interstellar space the distance
between two electrons is about 0.73 cm.
Calculate the electric force between these two
electrons. Use 9 × 10^9N · m2/C^2
for the Coulomb constant. The magnitude of the
charge of the electron is −1.6 × 10^−19C .

Answer 1

do they want the force at the center or the force on one due to the other?

Answer 2

I think it said repulsive

Answer 3

F=kq1q2/r^2

Answer 4

is that 4.3235x10^-24?

Answer 5

that's what I got. all units worked out to end up with Newtons

Answer 6

Calculate the gravitational force between these two electrons. The universal gravitational constant is 6.7 × 10^−11N · m2/kg^2
. and the mass of the electron is 9 × 10^−31kg.
and how to solve for that? that is the second part

Answer 7

Do you get 1.0184x10^-66?

Answer 8

F=Gm1m2/r^2

Answer 9

yes. same answer