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14_InstSolManual_PDF_Part2 - 14-2 Chapter 14 TK 5 TC 1...

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14.6. Set Up: (a) Convert to by subtracting and multiplying by Then convert to using (b) Convert to using Then convert to by multiplying by and adding (c) Set Solve: (a) (b) (c) From part (a), Set This gives and Or, could set in the result derived in part (b): and which checks. 14.7. Set Up: (a) and and we are asked to solve for From Table 14.1, the coefficient of linear expansion is (b) Use Solve: (a) (b) Reflect: In (a) note that the fractional change in length, is very small. In (b), is smaller in than in A Fahrenheit degree is smaller than a Celsius degree and a temperature difference is a larger number when expressed in than in So, to give the same value, is smaller in 14.8. Set Up: The coefficient of linear expansion for steel is Solve: 14.9. Set Up: Let and Solve: 14.10. Set Up: For steel, and Solve: (a) (b) The minus sign means the stress is compressive. 14.11. Set Up: For ethanol, Solve: The air space will have volume 11 L. 14.12. Set Up: For copper, Solve: so 14.13. Set Up: The capacity of a flask contracts when the glass is cooled, with the same volume change as for a solid piece of glass.
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