Recent content by Velocity.

Electric force question help please! I was just doing a question in my textbook and I got stuck on this question as my answer is no where near the given answer. Two charges of magnitude 0.24 μC and 0.29 μC are in a liquid dielectric with dielectric constant κ = 2.0. The charges are separated...

I'm still confused as to how to get the anwer of 7560\muN

Do you mean substitute in 0.18 for r and 1x10^-6 for F and 9x10^9 for k then I get 3.6x10^-18 = q1q2. What do I do next?

How would I work out q1q2? I'm really stuck and don't know how to proceed

Two charges q1 and q2 are 18cm apart and have an electric force between them of 1micro Newton. If the charge on q2 is increased by 9 times and the distance between q1 and q2 changed to 0.621cm, what is the new electric force between them? I've tried doing this question using E=kq/r^2 and...