Question

1. What is the electric force between a +2 µC point charge and a –2 µC point charge if they are separated by a distance of 5.0 cm? Show your work. (µC = 1.0 × 10–6 C)

Answer 1

apply coulomb's law

Answer 2

I know the formula for this, F=kq1q2/r^2 but I don't know how to apply it

Answer 3

here q1 = 2uc
and q2 = -2uc
and r = 5*10^-2m

Answer 4

What's k?

Answer 5

k is a constant
k = 8.98 *10^9

Answer 6

So it would look like this? (8.98*10^9)(2)(-2)/5*10^-2

Answer 7

- micro coulombs
- square the distance too , ie denominator

Answer 8

Given
q1=2*10^-6coulomb
q2=-2*10^-6 coulomb
k=9*10^9N.m^2/C^2

Answer 9

F=?