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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Young's modulus of elasticity, E, relates the strain, 8LIL, in a solid to the applied stress, FIA, through the relationship FIA = E(8L/L). To determine E, a tensile machine is used, and F, L, 8L, and A are measured. The uncertainties in each of these quantities are 0.5%, 1 %, 5%, and 1.5%, respectively, with 95% confidence. Calculate the uncertainty in E in percentage form. Which of these measurements has the greatest effect on the uncertainty of E? How can we reduce that uncertainty by 50%?
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