Thinking Like an Engineer: An Active Learning Approach (3rd Edition)
Thinking Like an Engineer: An Active Learning Approach (3rd Edition)
3rd Edition
ISBN: 9780133593211
Author: Elizabeth A. Stephan, David R. Bowman, William J. Park, Benjamin L. Sill, Matthew W. Ohland
Publisher: PEARSON
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Chapter 11.6, Problem 7CC

Chapter 11.6, Problem 7CC, You are working for a tire manufacturer, producing wire to be used in the tire as a strengthening You are working for a tire manufacturer, producing wire to be used in the tire as a strengthening agent. You are considering implementing a new machining system, and you must present a breakeven analysis to your boss. You develop the graph, showing two possible machines that you can buy.

  1. a. Which machine has a higher fixed cost?
  2. b. Which machine has a lower variable cost?
  3. c. How much wire must be produced on Machine 1 to break even?
  4. d. If you make 3 million feet of wire, which machine will yield the higher profit?
  5. e. Which machine has the lower breakeven point?
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CORRECT ANSWER ONLY WITH COMPLETE FBD. PREFERABLY HANDWRITTEN. I WILL UPVOTE  1. The beam shown carries the following loads:Total dead load, wDL = 36 kN/mConcentrated live load, PLL = 240 kNThe beam section is HSS16X12X3/8 with properties:Span, L = 6 mArea, A = 12,100 mm2Moment of inertia about x-axis, Ix = 292 x 106 mm4Fy = 345 MPa  1. Calculate the location of the live load, from the left support, for maximum moment to occur at the fixed support.Answer: 2.536 m2. Calculate the maximum moment. Answer: 439.128 kN-m
CORRECT ANSWER AND COMPLETE FBD ONLY. I PREFER HANDWRITTEN BUT ITS OKAY IF NOT. I WILL UPVOTE 2. The space truss shown is supported by ball-and-socket joints at A, B and C. Factored loads P1 and P2 areacting on joints D and E, respectively, towards the negative y-direction. 1. Calculate the stress of member CE, indicate tension or compression. Answer: 23.61 MPa Tension2. Calculate the stress of member AD, indicate tension or compression. Answer: 21.01 MPa Compression3. Calculate the stress of member CD, indicate tension or compression. Answer: 11.03 MPa Tension
CORRECT ANSWER AND COMPLETE FBD ONLY. I PREFER HANDWRITTEN BUT ITS OKAY IF NOT. I WILL UPVOTE 3. The frame has pin supports at A and E, subject to a wind load. Treat joint C to be an internal hinge. Given:Dimensions, H1 = 3.0 m; H2 = 4.5 m; L = 10.0 mWind loads, wWL (AB) = 4.8 kN/m; wWL (BC) = 3.9 kN/m; wWL (CD) = 1.5 kN/m; wWL (DE) = 1.2 kN/mMembers are made of A36 steel Wide Flange Section with the following properties:Area, A = 64000 mm2Depth, d = 762 mmFlange width, bf = 371 mmThickness of web, tw = 32 mmThickness of flange, tf = 57.9 mmMoment of inertia about x-axis, Ix = 6080 x 106 mm4The wide flange is oriented so that the bending is about the x-axis1. Calculate the stress in member AB, due to the axial load it carries, indicate if tension or compression.Answer: 0.0476 MPa Tension2. Calculate the stress in member DE, due to the axial load it carries, indicate if tension or compression.Answer: 0.2351 MPa Compression3. Calculate the maximum bending stress at B. Answer: 4.282 MPa

Chapter 11 Solutions

Thinking Like an Engineer: An Active Learning Approach (3rd Edition)

Ch. 11 - There is a large push in the United States to...Ch. 11 - Your team has designed three tennis ball...Ch. 11 - Plot the following pairs of functions on a single...Ch. 11 - Plot the following pairs of functions on a single...Ch. 11 - You need to create a graph showing the...Ch. 11 - The decay of a radioactive isotope can be modeled...Ch. 11 - In researching alternate energies, you find that...Ch. 11 - Prob. 10ICACh. 11 - The following graph applies to ICA 11-10 to...Ch. 11 - The following graph applies to ICA 11-10 to ICA...Ch. 11 - The following graph applies to ICA 11-10 to ICA...Ch. 11 - Use the following graph to determine which...Ch. 11 - The following graph shows the power delivered to a...Ch. 11 - The music industry in the United States has had a...Ch. 11 - You are working for a chemical manufacturer,...Ch. 11 - Use the accompanying graph to answer the following...Ch. 11 - A company designs submersible robots with a new...Ch. 11 - Your company is manufacturing a complex part from...Ch. 11 - Prob. 1RQCh. 11 - Prob. 2RQCh. 11 - Prob. 3RQCh. 11 - Prob. 4RQCh. 11 - Prob. 5RQCh. 11 - Prob. 6RQCh. 11 - 7. Eutrophication is the result of excessive...Ch. 11 - 8. In the 1950s, a team at Los Alamos National...Ch. 11 - Prob. 9RQCh. 11 - 10. One of the 22 named, derived units in the...Ch. 11 - Shown are graphs of the altitude in meters, and...Ch. 11 - Answer the following questions using the graph....Ch. 11 - Answer the following questions using the graph....Ch. 11 - In a simple electric circuit, the current (I) must...Ch. 11 - In a hard drive design, the faster the disk spins,...Ch. 11 - We have decided to become entrepreneurs by raising...Ch. 11 - As an engineer, suppose you are directed to design...Ch. 11 - We have obtained a contract to construct metal...Ch. 11 - Your company has developed a new high-mileage...Ch. 11 - One of the 14 Grand Challenges for Engineering as...Ch. 11 - You are an engineer for a plastics manufacturing...Ch. 11 - When a wine generator is installed there is a...

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