Recent content by fr0zensphere

Ohh! I found it! From google-image-searching "micromanipulator parts", the entire thing comes up, pretty much in the first line of images. I didn't realize it was all one part... Thank you! It's so simple! I kind of thought "micromanipulators" were something else...

I visited the lab of some collaborators, and they had this device which exactly matches my needs in the lab I work in. Problem is, I can't find this thing anywhere. I emailed the PI of that lab, and he has no idea where it came from. It seems they bought it somewhere a while back and since then...

Bump. No one knows how to resolve this?

After the switch is closed, dq/dt < 0 for sure. I am treating q(t) as the charge on the positive plate of the capacitor. So, as the switch is closed, charge begins draining away from the top plate as the capacitor discharges -- i.e. q is decreasing. I believe what Young & Freedman wrote in...

Hi! I have been agonizing over the exact same problem. I spent several hours today thinking about this and trying to figure out the stupid sign. I slightly edited the image posted by OP to add the capacitor charges and to specify my starting point. I am considering a situation where at time t...