Recent content by viola.geek

Seconding what Monocles said, but also adding that some schools will pay students to be notetakers in classes.

Thank you for your response! :) If you join through the AIP, do you still register under your school's chapter? Or would that be completely separate?

I probably don't have enough research experience to truly answer your question, but I'll try...(Only 3 years into research so far..) I think it depends on whether or not you're interested in your research. If you find something that you absolutely love, then it won't get boring for you. But if...

My school has a chapter of SPS too (Sigma Pi Sigma, and Society of Physics Students). This'll sound kind of silly, but how do you go about joining it? Or get involved in general? I see signs for it in the physics department and outside the lab, but I don't really know anything about it.

Wikipedia has a pretty good article about carbon nanotubes. My supervisor told me to read it before I started work in the lab. I think the properties of carbon nanotubes are because of their structure, but keep in mind that there are different types of CNTs. (Single-walled, multi-walled...and...

So, then, impedance's relation to frequency is the equation(s)? (Just to clarify.) Edit: 1/Z = 1/jωL + jωC --> always the equation for impedance in a parallel circuit? or just that resonant frequency? Sorry for asking so many questions! I just want to make sure I understand this. :smile...

I did a quick Google search and found this site: http://www.public.iastate.edu/~fanous/ce332/force/cdmoment.html Perhaps that will be of some help. Also, what happened to your first equation? It looks like it simplifies to 100 - 3VB + MA + MB = 0 Are MA or MB at all related to VB and VA...

Could you post your work on it thus far? That might make it a bit easier to see what you have. Also, are you accounting for the direction of each? (Such as a force acting downward being negative, while a force acting upwards being positive? Depending on your axes.)

Not sure what you mean by "sum of moment = 0," but for equilibrium problems, I know you need to sum the forces in the x and y directions, sum the torques in the x and y directions, and set them equal to zero as you said, since everything is in equilibrium. Solve for your unknowns.

(Don't know if you've gotten it since, but...) As far as I'm aware, s = \thetaR, where s is the arc length, \theta is the angle, and R is the radius, is entirely scalar. I can only see it "becoming a vector," if that makes sense, if you break literally everything up into components. Could you...

Thank you for your response. :smile: But what do we mean when we say "phase shift?" Is that just for the polar plot, with a vector |Z| and an angle \phi? I know you can show impedance data on a Bode plot, which has the log |Z| and log ω, but I don't understand why it's the log of each value...

I've tried to study with music in the background... I find it tough; I tend to end up lost in the music, focusing more on that than my studies, but perhaps that's because I'm a music student as well. :rolleyes: So, I tend to find it better to not be listening to music if I'm trying to seriously...

While working in a lab this summer, I've been reading up on impedance and AC circuits as much as I can, considering I have to present at the symposium here in August. I'm really confused about a few...parts of impedance, for lack of a better term. How does frequency affect impedance, in...