A cylindrical wire of radius R elongates when subjected to a tensile force F. Let 
represent the initial length of the wire and let 
represent the final length. Young’s modulus for the material is given by
Assume that F = 800 ± 1 N, R = 0.75 ± 0.1 mm, = 25.0 ± 0.1 mm, and = 30.0 ± 0.1 mm.
a. Estimate Y, and find the uncertainty in the estimate.
b. Of the uncertainties in F, R,, and , only one has a non-negligible effect on the uncertainty in Y. Which one is it?
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For the decision tree branch shown, determine the expected values of the two outcomes if decision D3 is already selected and the maximum outcome value is sought. (This decision branch is part of a larger tree.)
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A) Technician A only B) Technician B only C) Both technicians D) Neither technician
List four ways the human body expels heat?
What will be an ideal response?