Recent content by physiccool78

Homework Statement Mass = 0.2 kg Length of pendulum = 0.2 m Force constant 3 n/m Homework Equations T = 2pi rad(m/k) Sum of Torque The Attempt at a Solution I am really confused on where to start. I know you simply cannot plug it into the first equation listed above since all the mass isn't...

Oh sorry I meant V = Ed. Anyways the origin to my confusion is this. I will explain with this analogue. mgh = gravitational potential energy. The higher your object, the higher your potential energy. GMm/r^2 = F GMm/r^2 * r = GMm/r where m is an object and M is the mass of the Earth. For mgh...

Ok, thanks. So if the electric field is greater at point W, wouldn't that imply that the electric potential is greater as well? If E = Vq Then electric field is directly proportional to potential.

Thanks for the reply. For some reason, my brain thought (because the lines in my picture converged) that the electric field lines actually represented a charge from a negative source, which completely confused me. Thank you so much!

Thanks for the reply. So how come the answer to my question is B?

Homework Statement The question is attached. Homework Equations V = kq/r The Attempt at a Solution The analogy to determining the electric potential by thinking of it as lifting a rock (the more distance the higher the potential) makes sense to me, but I am confused by this equation: kq/r...

Wow... Thank you and now I feel embarrassed for asking this question! I can't believe I overlooked this. Thank you.

Homework Statement I attached a file. Numbers 10 and 12. Homework Equations kQq/r, kQq/r^2 The Attempt at a Solution I am confused about this problem. Shouldn't the electric field strength be 0 when x = 0? The charges are opposite and adding two opposite vectors with equal magnitude should...