Recent content by Sam_Hawkins

Hi, could you please clarify exercise 87 here: http://www.physics.ohio-state.edu/undergrad/greStuff/Problems_2009/E&M_4.pdf ? I do not seem to understand why the magnetic field is of any significance whatsoever when the charged objects are in the outer region? thanks.

ah alright my bad lol :D well that is just retarded, I thought the problem is asking whether the point will slide all the way to the end of the sinusoid (where the line ends on the picture lol :D ). Ok now it is clear. thanks.

Okay, but I do think you know exactly what I meant. I will play your game then. Why can't I use the conservation of energy? For every initial speed u>0 it holds that at the bottom of the sinusoid the speed will be v+u where v=sqrt(4gd) which is by itself enough to overcome the gravitational...

allright, but why does the conservation of energy not apply here?

Homework Statement http://www.physics.ohio-state.edu/undergrad/greStuff/Problems_2009/Mechanics_4.pdf exercise 83 Homework Equations Conservation of energy?! The Attempt at a Solution Well what I think is that if there is no friction, whenever the initial velocity is >0, the...

Imho the difference you are looking for is that photoconductive devices only change their conductivity when exposed to light while photovoltaics actually generate electrical power by the means of voltage induced by EMR.

Spivak calculus series seems to be appreciated by a lot of people...If you want something for the computation drill, Demidovich mathematical analysis book is the all time classic, even though it is now considered quite "hardcore" by some. It also includes the basics of theory you need to solve...