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EMCH 211  STATICS  Penn State Study Resources

All TESTS for Geosci
School: Penn State
Course: STATICS
1. The US government, and most other governments of the world, provide support for scientists but not for astrologers, palm readers, or telephone "psychics". Why do governments support scientists? A. Scientists help humans do useful things, which makes th

EMCH 211 Homework 3 Solution
School: Penn State
Solutions Manual 266 Problem 3.2 The structure shown uses members AB, BC , and BD to support an object with the weight or mass given in the gure. Determine the force supported by each of these members, indicating whether they are in tension or compression

HW3_Solutions
School: Penn State
Statics 2e 267 Problem 3.2 The structure shown uses members AB, BC , and BD to support an object with the weight or mass given in the gure. Determine the force supported by each of these members, indicating whether they are in tension or compression. Solu

Quiz Unit 6 Quiz _InArt_1..
School: Penn State
Course: STATICS
Quiz: Unit 6 Quiz  InArt 115  The Popular Arts in America: Popular Musi. http:/popartuniversity.com/courses/inart115/quizzes/bf84e7b787 Logged in as Sam Resnek  Log out InArt 115  The Popular Arts in America: Popular Music Spring 2010 UP008 Home Textb

Sig_Figs___Rounding
School: Penn State

HW_Section_7.3
School: Penn State
TOPIC Area of a surface of revolution; volume of a solid of revolution SECTION 7.3 7.61 (V = 12.8 cubic inches, A = 95.74 square inches) 7.63 (V = 1780 cubic mm, A = 1980 square mm) 7.64

HW_Section_7.4
School: Penn State
TOPIC Area of a surface of revolution; volume of a solid of revolution SECTION 7.4 7.74 7.85 a,b,c (See word document titled Answers for 7.85) 7.88 7.90

HW_Section_9.1
School: Penn State
TOPIC Friction; Coulomb's law; coefficients of friction; angle of friction 9.2 9.7 (P tipping = 280 N, P sliding = 210 N) 9.18 SECTION 9.1

HW_Section_9.2
School: Penn State
TOPIC Problems w/multiple contact surfaces; determination of sliding directions SECTION 9.2 9.32 9.42 9.40 (assume bar CD is thin enough that F2 has negligible moment about point C)

HW_Section_9.3
School: Penn State
TOPIC Belts and cables contacting cylindrical surfaces 9.52 9.55 (T2 = 240.5 lbs) ; Full wrap makes beta = pi/2 + 2pi 9.58 SECTION 9.3

HW_Section_10.3
School: Penn State
TOPIC Mass moment of inertia; radius of gyration SECTION 10.3 10.77 10.78 10.79 10.82

Exam_1_Review_Concepts___Problems
School: Penn State
Concepts Postion vectors, vector addition, subtraction, multiplication Dot Product Cross Product 3Dimensional space  Cartesian representation 3Dimensional space  Polar representation 68 Solutions Manual Problem 2.24 E E Determine the magnitudes of vec

NCEES_Calculator_Policy
School: Penn State

HW_Section_10.2
School: Penn State
TOPIC Parallel axis theorem in integration; for composite shapes SECTION 10.2 10.28 Use Parallel Axis Theorem 10.30 10.32

HW_Section_10.1
School: Penn State
TOPIC Area moments of inertia; radius of gyration SECTION 10.1 10.3 Ix = 7h^3b/3; Iy = 7b^3/3 10.6 10.10 (optional, for fun) 10.18

HW_Section_7.2
School: Penn State
TOPIC Area of a surface of revolution; volume of a solid of revolution SECTION 7.2 7.44 7.49 (xbar = 2.18 mm; ybar = 2.49 mm; zbar = 9.42 mm)

HW_Section_6.4
School: Penn State
TOPIC Trusses in three dimensions; Frames and Machines; analysis procedure; free body diagrams 6.78 6.85; Ey = 150 N; Gx = 116.7 N 6.92 SECTION 6.36.4

HW_Section_3.2
School: Penn State
TOPIC Equilibrium of particles in two dimensions; Free body diagrams; cables, bars, pulleys, springs, reactions; SECTION 3.2 3.51a T = 2.92 N 3.54 3.57a,b,c F = 4.64 lb, F = 14.64 lb, F = 5.36 lb 3.74 3.79 W = 20.84 lb

HW_Section_3.1
School: Penn State
TOPIC Equilibrium of particles in two dimensions; Free body diagrams; cables, bars, pulleys, springs, reactions; SECTION 3.1 3.2 3.5 Tbd = 50 lb (tension), Tab = 70.5 lb (compression), Tbc = 75.14 lb (compression) 3.8 3.11 h = 1.50 ft. 3.17 P = 254 lb 3

HW_Section_2.5
School: Penn State
TOPIC Vector cross product SECTION 2.5 2.145; Answer: 86.9 in lb k(hat) 2.146 2.154a (Compute 2 vectors that are normal to the surface: vector n1 = vectors r12 X r14 and vector n2 = vectors r34 X r32. If vector n1/n1 equals vector n2/n2, that is, if the

HW_Section_3.3
School: Penn State
TOPIC Equilibrium of particles in three dimensions; reactions; solution of algebraic equations SECTION 3.3 3.83 Tac = Tad = 2.75 kN, Tab = 4.5 kN 3.87 Fc = 2330 N, Fd = 667 N, Fb = 2000 N 3.94 3.100 Set up problem to system of equations; don't have to

HW_Section_4.1
School: Penn State
TOPIC Moment of a force; scalar and vector approach; Varignon's theorem SECTION 4.1 4.12b 4.15 4.17 a) Mz = 160 Nm b) Ma = 170 Nm 4.22a 4.28

HW_Section_4.2
School: Penn State
TOPIC Moment of a force; moment of a force about a line; scalar and vector approach SECTION 4.2 4.35: M(ab) = 4320 in lb 4.50 4.51 (Hint: To maximize, moment abour shaft OB, the 130N force should be perpendicular to the plane containing lines OA and OB.)

HW_Section_4.3
School: Penn State
TOPIC SECTION Moment of a couple; vector and scalar approach; equivalent couples; couple moment; transmissibility of a force; equivalent force systems; special force systems 4.67 a) Fa = 1.2N, Fb = 1.2N, Nb = 6N b) M = 48 Nmm (ihat) 4.70 4.74 (cross pro

HW_Section_4.4
School: Penn State
TOPIC SECTION Moment of a couple; vector and scalar approach; equivalent couples; couple moment; transmissibility of a force; equivalent force systems; special force systems 4.84 4.87 (Answers: a) M(r) = 600 Nm, b) M(r) = 200 Nm, c) P = 100 N, F = 100 N

HW_Section_5.15.2
School: Penn State
TOPIC Equilibrium of rigid bodies in two dimensions; free body diagrams; gears SECTION 5.15.2 5.4 5.13; W = 19200 N, d = 748mm 5.17; Gx = 0; Ay = 2.833 kN, Gy = 3.167 kN 5.30 5.34

HW_Section_5.3
School: Penn State
TOPIC Cables, pulleys, springs, superposition; supports & fixity; equilibrium of bodies in three dimensions SECTION 5.3 5.50 5.54 5.60 5.67; d = 10.05 mm; T = 515.9 N; Rax = 476.2 N; Fs = 301.6 N

HW_Section_6.1
School: Penn State
TOPIC Truss Structures; method of joints; zeroforce members; typical truss members 6.8 6.24 6.32b 6.34 SECTION Review; 6.1

HW_Section_5.4
School: Penn State
TOPIC SECTION Cables, pulleys, springs, superposition; supports & fixity; equilibrium of bodies in three dimensions 5.4 5.103 a & b. Answers to b: Bx = 266.7 N, T = 566.7 N, By = 0; Mbx = 60,000 Nmm, Mby = 80,002 Nmm 5.113 (Hint: Summa Fy = 0) F = 500 N;

HW_Section_6.2
School: Penn State
TOPIC Treatment of forces that are not joints; static determinacy and indeterminacy SECTION 6.2 6.42 6.48 6.50 (Use Equation 6.22) 6.52 It may be easier to use both Method of Joints and Method of Sections in the same problem.
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