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Physics Properties Of Matter Level: High School

Solids

A 360 kg load is hung on a wire of length 4.5 m , cross sectional area 3.7 x 10^-5 m^2 , and Young’s modulus 8 z 10^10 N/m^2 .

The acceleration of gravity is 9.8 m/s^2 . What is its increase in length ? Answer in unit of mm .