physics hw

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A hanging magnesium wire with diameter0.13 cm is initially 2.0 m long. When a 28kg mass is hung from it, the wire stretches an amount 1.03 cm. A mole of magnesium has a mass of 24 grams, and its density is 1.74 g/cm3.

What is the length of an interatomic bond in magnesium (diameter of one atom)?

Find the approximate value of the effective spring stiffness of oneinteratomic bond in magnesium.

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