Plate Definition and 960 Threads

Hi All, I've been doing a few problems with plate capactors and I have this new one which introduces a voltage U. I haven't seen an example with a voltage befopre so I'm not sure where to start it. I'm hoping someone could start me off. The problem goes like this: Find the electric field...

How can I show that the capacitance of a plate capacitor increases if a dielectric material fills the space between the plates?

When sunlight hits an object, for instance a metal plate, the plate will get hotter, now as i understand, heat is caused by atoms vibrating, so the photons hitting the metal plate must have caused the atoms in it to vibrate, my question is, how do massless? photons transfer energy to the...

Hi, i was wondering if anybody can help me with the following problem: A plate drops onto a smooth floor and shatters into 3 pieces of equal mass. 2 of the pieces go off with equal speeds v at right angles to one another. How do I find the speed and direction of the third piece? I know...

Ian? What happens if you leave E. coli's out to grow on a AMP/LB plate overweekend? :frown: I left my plate in the stove and they are REALLY important clones and I don't have the key to the lab! :eek: They'll live right?

can anyone help me derive the moment of inertia for a rectangular plate, area of ab, (with the axis through the center)? i know it ends up being (1/12)(M)(a^2+b^2) but when i try it, my a's and b's end up canceling... its craziness. also, when i try the sphere, instead of (2/5)MR^2, i...

Just going through some review questions and wanted to clear up some questions I had. I figure you guys like showing off how smart you are. First Question: Consider the parallel plate capacitor classroom demonstration. A. Write a mathematical expression for Gauss' Law. Describe the meaning...

I found two different resources which give two different but similar formulae to calculate surface tension for Wilhelmy plate method: in one formula, the surface tension (ST) force is devided by the perimetor of the plate; in the other one, ST force is divided by twice the perimetor. Which...

I need suggestions for a license plate. I would like to keep it free so it should include a number. Any suggestions would be welcomed, I would like to keep it sciency or mathy, no religious ones please.

I think I'm lost in the ugly algebra, but I want to make sure. A uniform rectangular plate is suspended at point P (top center of the rectangle), and swings in the plane of the paper about an axis through P. At what other point between P and O (center of the rectangle), along PO, could the...