Recent content by nickypoo

I'm not sure where else to post this. How are magnets specified? If a magnet is "0.2" Tesla, is that the maximum magnetic field present at the surface?

Ok, well I'm not really sure if this is the right place to post this, but I have a simple question regarding nuclear magnetic resonance. I know that the "spin" axis of a proton will align along the external magnetic field. That's pretty simple. What I don't understand is the direction they...

@ ModusPwnd: Yes I think you're right. The mass would do work on an external system that slows it down. I guess my conceptions are not fully developed. The spring will have maximum compression when the kinetic energy of the mass is zero. All 100J of gravitational kinetic energy will be...

So I feel really stupid asking this, because this is a very elementary physics problem and I'm well past this level of physics, but I don't understand what's going on here. Say we have a vertical spring with spring constant 100N/m. A 100N mass is placed on top of it. This will cause the spring...

Now I understand if I look at what I have to do to calculate the length of the curve. All the "differential length element" is, is the derivative of the length of the curve multiplied by the unit vector of velocity: \sqrt{(\frac{\partial x}{\partial t})^2+(\frac{\partial y}{\partial...

Well, I think I've found an answer by bumbling around for a little bit. If I use the velocity vector alone as dl then I get a solution that's exactly equivalent to a formula I found online for this calculation. Now can anyone explain how this works? Thank you.

Hi, I'm trying to work with the Biot-Savart law to look at the magnetic field strength along the center of an asymmetric solenoid I wrapped. I parameterized the coils with x = r cos 2(pi)t, y = r sin 2(pi)t, and z = D t where r is the radius of the coil layer, D is the diameter of the wire...

Hi Brian, are you already accepted to Cal? I can't give you any words of assurance, but I'm in a similar situation as you. I'm 25 and I too had a sketchy academic past in high school, then CC right after graduation. Not that I wasn't smart enough. I, like you, was just a horrendous student. Now...