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A hollow steel tube 150 mm external diameter and 80 mm internal diameter and 4 m long is subject to a tensile load of

A hollow steel tube 150 mm external diameter and 80 mm internal diameter and 4 m long is subject to a tensile load of 41 0 KN. Calculate the stress in the material and the amount the tube Q6). stretches if the Young's modulus is 200 000 N/mm2.

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