# Working with Youngs Modulus

Copper has a breaking stress of 3 x 10^8 N/m2.

(a) What is the maximum load that can be hung from a copper wire of diameter of 0.42 mm before it breaks?

(b) If half this maximum load is hung from the wire, by what percentage of its length will it stretch?

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The stress is defined as the force per unit area, F/A. The ...

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