Primitive cells, Wigner-Seitz cells,
and 2D lattices
4P70, Solid State
Physics
Chris Wiebe
Choice of primitive cells
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Which unit cell is a good
choice?
A, B, and C are primitive
unit cells. Why?
D, E, and F are not. Why?
Notice: the volumes of A,
Soap Films: Statics and Dynamics
Frederik Brasz
January 8, 2010
1
Introduction
Soap lms and bubbles have long fascinated humans with their beauty. The study of soap
lms is believed to have started around the time of Leonardo da Vinci. Since then, research
Practice Problems on the Dimensional Analysis
dim_anal_01
The power, P, to drive an axial flow pump depends on the following variables:
density of the fluid,
angular speed of the rotor,
diameter of the rotor, D
head rise across the pump, H ( = p/g)
volu
Final Celebration Review Problems
Problem 1
(a) One-third of a mole of He atoms is taken along the solid path
abc shown in the pV-diagram. Assume the gas may be treated as
ideal. How much heat is transferred into or out of the gas?
(ANSWER: 3000 J transfe
Problems and Solutions
in Mathematics, Physics and Applied Sciences
compiled by C. Bond
Vol.2 no.3
Resistance of an Innite Ladder
We want to compute the input resistance to a resistor ladder network of the form in Figure
1. This network can be thought of