Showing 1 to 16 of 28
  • 2 Pages midterm_01
    Midterm_01

    School: Berkeley

    Course: PHYSICS 141A

    Solutions to midterm 1 (141A Sp 07)1These solutions are a little terse. You would be expected to explain fully in your answer. 1. (a) ^ a1 = d 3x See figure 1. (b) Two atoms in a basis, at 1 = 0, 2 = - 1 a1 + 2 a2 . 3 3 (c) We choose our recipro.

  • 3 Pages midterm_02
    Midterm_02

    School: Berkeley

    Course: PHYSICS 141A

    Solutions to midterm 2 (141A Sp 07)11.(a) Bloch's theorem says that if the potential is periodic, ie. U(x + a) = U(x), then the energy eigenfunctions satisfy (x + a) = eika (x) for some k. This is important for a number of reasons. For instance.

  • 3 Pages final09
    Final09

    School: King's College London

    Course: PHYSICS 336

    Physics 361 Final exam December 7, 2009 answers in [[..] You may consult notes that you yourself have written. F.1 Comparing two metals, short answer Two free-electron-like metals, A and B, have a single valence ... density of electrons, the pair ...

  • 3 Pages MidtermSolved
    MidtermSolved

    School: King's College London

    Course: PHYSICS 336

    Physics 361 Midterm exam 10/26/09 Name: Please indicate your reasoning for your answers. You may consult notes that you yourself have written, but not the book or things that others have written. Test results Total scores: 24 23 22 22 20 20 18 18 ...

  • 2 Pages math 354 chapter 8-10 test
    Math 354 Chapter 8-10 Test

    School: Morehead State

    Course: MBA 500

    ... Road construction workers spend a lot of time in unproductive activities, like talking on cellphones, smoking and telling jokes. An actual study, using a stopwatch, was conducted at a construction site. A random check of workers revealed the f...

  • 2 Pages 731F11_EXAM1
    731F11_EXAM1

    School: Maryland

    Course: PHYSICS 731

    1. Rather than starting with a semiclassical approximation, a quantum mechanical approach to screening in the electron gas would first solve Schroedinger's equation and then determine the induced charge density from the resulting wavefunction ...

  • 1 Page finalsoln
    Finalsoln

    School: Maryland

    Course: PHYSICS 731

    1. Graphene consists of two interpenetrating 2-dimensional lattices A and B in the x-yplane:a. Identify the nearest-neighbor vectors ni and construct the k-dependent LCAOtight-binding Hamiltonian for single-layer graphene in a pz orbital basis. Yo...

  • 3 Pages Math 123 Finals Mass Tutorial
    Math 123 Finals Mass Tutorial

    School: McGill

    Course: BUSINESS 101

    ... eg x1 + x2 > 8 To turn this into linear equation, introduce slack variable, s1 → x1 + x2 +s1 = 8 OPTIMIZE USING SIMPLEX METHOD Example 1: Maximize z = 5x1 + 2x2 subject to: 2x1 + 4x2 ≤ 15 3x1 + x2 ≤ 10 x1, x2 ≥ 0 1) Turn these ine...

  • 2 Pages midterm_2012_sol
    Midterm_2012_sol

    School: University Of Florida

    Course: PHY 4905

    ... ε = ± ¯h2k2 2m∗ . Find the electronic part of the specific heat for the case when the Fermi energy is equal to zero. (You may need to use the fact that ∫ ∞ 0 dxln (1 + exp (−x)) = π2/12). [50 points] Following the same steps as in ...

  • 15 Pages Final Proposal Team All-In
    Final Proposal Team All-In

    School: Oregon

    Course: BA 352

    ... Program Description We the Springfield Education Foundation (SEF), located in Springfield, Oregon, are a non-profit organization that works alongside Springfield public schools to advance student opportunities and support educational programs ...

  • 2 Pages midterm_2012_sol
    Midterm_2012_sol

    School: University Of Florida

    Course: PHY 4905

    ... ε = ± ¯h2k2 2m∗ . Find the electronic part of the specific heat for the case when the Fermi energy is equal to zero. (You may need to use the fact that ∫ ∞ 0 dxln (1 + exp (−x)) = π2/12). [50 points] Following the same steps as in ...

  • 1 Page Exam_exam_1_
    Exam_exam_1_

    School: Maryland

    Course: ACCOUNTING 221

    ... Answer question 2 on answer page 2. 2. a. (12 points) Calculate the average rate of change of 1 5 − = x y on the interval 1 ≤ x ≤ 2. 2. b. (12 points) Given 1 5 − = x y , find 1 2 2 = x dx yd . 2. c. (4 bonus points) What does your ans...

  • 2 Pages Exam_solutions_1_
    Exam_solutions_1_

    School: Maryland

    Course: ACCOUNTING 221

    ... x x dx yd x x dx dy x y 2. c. (4 bonus points) What does your answer to question 2 b) tell you about the graph of 1 5 − = x y ? At the point where x = 1, the graph of y is concave up. 3. a. (4 points) State the domain of the function ( ) ( )...

  • 2 Pages Exam_solutions_1_A
    Exam_solutions_1_A

    School: Maryland

    Course: ACCOUNTING 221

    ... x x x x xm x x x xm for x = –2, 1 x < –2 –2 < x < 1 1 < x m ′′ positive negative positive 3. a. (10 points) Given a company's Revenue function ( ) x x xR − + − = 2 400 500 , find the equation to express Marginal Reve...

  • 3 Pages Exam 1
    Exam 1

    School: UCSC

    Course: PHYSICS 156

    ... What is this thing called tunneling? How does it occur in a solid? How does that cause conduction?” In answering this question, you can assume that the questioner already knows about the discrete atomic levels (1s, 2s and so on). 3

  • 3 Pages MidSession13examSoln
    MidSession13examSoln

    School: UNSW

    Course: PHYS 3021