Recent content by gabrielbhl

this masses are cirular of radiu r, that is: I=mr²

If I have an elastic formin a helix which I've turned N times and have a radiu r... it connect two masse m (one of them is fixed) - the natural length of the ropes are X_0 (the distance between the masses) what are the equation of motion X(t) and (Theta)(t) ??

man.. thanks a lot, really, i was freaking out here... I needed to hear (read) it from someone. Thanks!

Even using the method of image charges is is too dificul to calculate... I have no idea

Hi everybody It's easy (and well known) to calculate the charge distribution of a condutor in the presence of a point chage. BUT if we change this point charge and put an charge distribution... like a condutor disc, how can I calculate the induced chage of the other conductor?? THANKS

Anyone here trying to solve the problems?? Any brazilliand guy??

sorry... define motion

Define moviment

Anyone?? Please i need your help!

HEY, the force is not like u had predicted F=Q2/(2ε0xA) , it is only q²/2ε0A, it does not depends of the small distance x... and yes, the force on this case is q²/2ε0A because the plates behave like an parallel plat capacitor. As the distance x increases, the force decreases (once the...

In my opinio you already have the solution: the force of these two charged plats are F= q²/2A(epsilon_o) for small distances and just F=kq²/d² for big distances

I've tryied using theta=0 and then put some sen and cos but I failed! In my opinion, that is the best collision problem ever

Hi everybody. That's my first (of many) post here! I'm a brazilian guy who is trying o solve de Wopho's Problems. And onde of then called my attention for the criativity using an (theoterically) easy concept of elastic collision. The problem is the second...