Question: 7 . A 1 0 - ft long circular steel rod with a diameter of 1 inch is under tension from a pulling force of

7. A 10-ft long circular steel rod with a diameter of 1 inch is under tension from a pulling force of 50 lb. Calculate the stress in psi. If the steel has a modulus of elasticity of 30 x 10^6 psi, calculate the elongation in the specimen.

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