wind turbine blades often made from fiberglass. Tensile testing of a new sample of fiberglass is to be conducted; previous fiberglass samples had an elastic modulus of 40 GPa. Coupon specimens of the material are available that are 2 mm thick, 18 mm wide, and long enough to accommodate an extensometer 35 mm long. The testing machin that covers the right range of load is to be chosen. it is expected to load the material up to a strains of 3%. if th material must remain elastic over that range, what would be the maximum load?