You hang a heavy ball with a mass of 12 kg from a gold wire, Ask an Expert

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You hang a heavy ball with a mass of 12 kg from a gold wire 2.6 m long that is 2 mm in diameter. You measure the stretch of the wire, and find that the wire is stretched .001239 m.

a). Calculate Young's modulus for the wire.

b). The atomic mass of gold is 197 g/mole, and the density of gold is 19.3 g/cm^3. Calculate the interatomic spring stiffness of gold.

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