An aluminum sample having diameter of 0.505 inches and length of 2 inches is tested in tension. It starts to yield at 700lbs, reaches its maximum load at 9000 lbs with a length of 2.3 inches, and after breaking its length is measured to be 2.5 inches. a) What is the yield strength b) What is the tensile strength c) What is the elastic strain at the yield point d) What is the % elongation.