The solid circular rod that is $600$ mm long and $20$ mm in

diameter is subjected to an axial force of $P=50kN.$ The

elongation of the rod is $=1\mathrm{.}50mm,$ and its diameter

becomes $d^{\text{'}}=19\mathrm{.}9737mm.($Figure $1)$

Part A

Determine the modulus of elasticity of the material. Assume that the material does not yield.

Express your answer to three significant figures and include the appropriate units.

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Part B

Determine the modulus of rigidity of the material. Assume that the material does not yield.

Express your answer to three significant figures and include the appropriate units.

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Figure