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Get Full Access to Mechanics Of Materials - 8 Edition - Chapter 11.2 - Problem 11-9
Get Full Access to Mechanics Of Materials - 8 Edition - Chapter 11.2 - Problem 11-9

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# Select the lightest-weight W12 steel wide-flange beam from Appendix B that will safely

ISBN: 9780136022305 449

## Solution for problem 11-9 Chapter 11.2

Mechanics of Materials | 8th Edition

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Problem 11-9

Select the lightest-weight W12 steel wide-flange beam from Appendix B that will safely support the loading shown, where . The allowable bending stress is and the allowable shear stress is .

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PY 205 with Daniel Dougherty Week 1 Chapter 1 1/12/2016  Theory – broader, more detailed and can give quantitatively testable predictions, often with great precision  Law – certain, concise but general statements about how nature behaves  Principle- less general statements o Scientific laws are descriptive because they describe how mature behaves  Uncertainty and percent uncertainty o Ratio of uncertainty to the measured value X 100 to make it a percent o Ex: 8.8 +/- .1cm .1/8.8 X 100 = 1%  Significant figures o 0 is a placeholder o Ex: 80  one significant figure since 0 does not count o RULE: number of significant figures in the last number should be the s

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