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Please answer the following questions: 1. Which of these properties of a metal corresponds to the stress-strain graph having no plastic region? (1) A. Ductility

Please answer the following questions:

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1. Which of these properties of a metal corresponds to the stress-strain graph having no plastic region? (1) A. Ductility B. brittleness C. strength D. large ultimate tensile stress 2. Calculate the amount of stress in Pa that would cause a nickel wire to extend with a strain of 3.2%. The Young modulus of copper is 190 GPa. (3) 3. The density of constantan is 8.86 g/cm3. Calculate the volume in m3 of 1.3 kg of constantan. (4)

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