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Question: problem 1 a1quot diameter steel bar is 9ft long the...

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Problem 1 A1 diameter steel bar is 9-ft long. The diameter is reduced to in a 3-ft central portion of the bar. When an axial load is applied to the end of the bar, the axial strain in the central portion of the bar is 720 μǐnfin, and the total elongation of the bar is 0.06789 in. Determine: (1) The elongation of the central portion of the bar (2) The axial strain in the end portions of the bar Note: 1u 1x 10
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