Engineering, 07.03.2020 05:02 jenn8055
One mole of iron (6 1023 atoms) has a mass of 56 grams, and its density is 7.87 grams per cubic centimeter, so thecenter-to-center distance between atoms is 2.28 10-10 m. You have a long thin bar ofiron, 2.0m long, with a square cross section, 0.15 cm on a side.
You hang the rod vertically and attach a 231 kg mass to the bottom, and you observe thatthe bar becomes 1.01 cm longer. Fromthese measurements, it is possible to determine the stiffness ofone interatomic bond in iron.
What is the spring stiffness of the entire wire, considered as asingle macroscopic (large scale), very stiff spring?
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One mole of iron (6 1023 atoms) has a mass of 56 grams, and its density is 7.87 grams per cubic cent...
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