Question

ap phscs

Answer 1

What's the formula for the repulsive force between two objects?

Answer 2

Sure. What's the formula?

Answer 3

Do you know the value of k?

Answer 4

Okay, well, I'll give it to you:

\[F = k_e \frac{q_1 q_2}{r^2} = 8.98755*10^9\text{ Nm}^2\text{C}^{-2}*\frac{3.0*10^-6\text{ C}*3.0*10^-6\text{ C}}{r^2} = 0.90\text{ N}\]

Answer 5

Nuts, I didn't format that quite right:
\[F = k_e \frac{q_1 q_2}{r^2} = 8.98755*10^9\text{ Nm}^2\text{C}^{-2}*\frac{3.0*10^{-6}\text{ C}*3.0*10^{-6}\text{ C}}{r^2} = 0.90\text{ N}\]

Answer 6

It should be obvious what the answer is to 4 or 5 decimal places even without a calculator, though maybe not at 3 AM :-)

Answer 7

still confused