6. (SI Units) A tensile test specimen has a gage length = 50 mm and its cross-sectional area = 100 mm^2. The specimen yields at 48,000 N, and the corresponding

gage length = 50.23 mm. This is the 0.2 percent yield point. The maximum load of 87,000 N is reached at a gage length = 64.2 mm.Determine (a) yield strength, (b) modulus of elasticity, and (c) tensile strength. (d) If fracture occurs at a gage length of 67.3 mm, determine the percent elongation. (e) If the specimen necked to an area = 53 mm^2, determine the percent reduction in area. (5')