Ok, for the first part:
(-mv^2)/.1 = .1*.0015 * v
v = -( .00015 * .1 )/m
mass of proton is about 1.67*10^(-27)(I'll use 1.5*10^-27 because I can't use a calculator here)
v = 10 * 10 ^ 22
I think I did something wrong here...
The question doesn't have the cause of the magnetic field of the proton or the magnitude of the force... Unless those questions were supposed to help me grasp a concept in which I still can't see...
For the second part, I'm still clueless...
I'm not sure why the answer to the following question would be zero, so far, I'm thinking because work is force times distance and in a circle, there is no distance after a complete orbit. But I have a strange doubt that it might be something else.
A magnetic field of .1T forces a proton...
Right now I'm reviewing old AP problems for the AP exam for Physics B tomorrow, and I can't seem to get a simple spring problem. I don't know why, but I can't just grasp it. Here it is:
A block of mass 3kg is hung from a spring, causing it to stretch 12 cm at equilibrium, as shown above...