A hanging wire made of an alloy of titanium with diameter 0.14 cm is initially 2

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A hanging wire made of an alloy of titanium with diameter 0.14 cm is initially 2.9 m long. When a 97 kg mass is hung from it, the wire stretches an amount 1.49 cm. A mole of titanium has a mass of 48 grams, and its density is 4.54g/cm3. Based on these experimental measurements, what is Young's modulus for this alloy of titanium? As you've done before, from the mass of one mole and the density you can find the length of the interatomic bond (diameter of one atom). This is 2.60 times 10-10 m for titanium. As shown in the textbook, the micro quantity kS,i (the stiffness of one interatomic bond) can be related to the macro property Y:

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