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magma_saber
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Homework Statement
One mole of iron has a mass of 56 grams and density of 7.87 g/cm^3. You have a long thin bar of iron, 2.0 m long, with a square cross section, 0.12 cm on a side. You hang the rod vertically and attach a 151 kg mass to the bottom, and you observe that the bar becomes 1.03 cm longer. Calculate the effective stiffness of the interatomic bond, modeled as a "spring":
Homework Equations
Y= (F/A)/(dL/L
Y=ks/d
The Attempt at a Solution
Y=[(151*9.8)/(0.12e-2)2]/[(1.03e-2)/2]