aelinds

A hanging wire made of an alloy of iron with

diameter 0.1 cm is initially 2.1 m long and a

cubic atomic structure. When a 69 kg mass

is hung from it, the wire stretches an amount

1.1 cm. A mole (NA = 6.02 × 10^23 atoms) of

iron has a mass of 56 g/mol, and its density is

7.87 g/cm3. Use g = 9.8 m/s^2.

Based on these experimental measurements, what is Young’s modulus for this alloy

of iron?

Answer in units of N/m2

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