The following data are obtained from a tensile test of a copper specimen. The load at the yield point is 141 kN. - Length of the specimen is 27 mm. The yield strength is 72 kN/mm². The percentage of elongation is 42 %.
i) Diameter of the specimen,
ii) Final length of the specimen,
iii) Stress under an elastic load of 14 kN,
iv) Young's Modulus if the elongation is 1.5 mm at 14 kN and
v) Final diameter if the percentage of reduction in area is 29 %.