An oven dry piece (2.42 inch by 2.26 inch by 6.04 inch) of Douglas Fir weighs 1.32 lbs. What is the oven dry specific gravity? Estimate the density at a moisture content of 13%. b. Estimate the tangential, radial, and longitudinal shrinkage if the moisture content is reduced from 12% to 5% for a 8" (radial) x 8" (tangential) x 16' (longitudinal) post of Douglas Fir. The actual dimensions are 7/4" by 7/4" by 16. c. The tensile strength parallel to the grain is 19,500 psi at 12% moisture content. Estimate the compressive strength parallel to the grain, the compressive strength perpendicular to the grain, and the tensile strength if the grain is 25 from parallel to the face of the lumber in the longitudinal direction. d. Estimate the maximum short term tensile load for a sawn 2x8x16 piece (1 1/4" by 7/4" by 16') from this Douglas Fir at 12% moisture with the grain parallel to the longitudinal direction of loading with and without a 2" diameter knot through the 2" thickness perpendicular to the 8" direction. If the maximum load is applied for more than 10 years, will the load decrease or increase? Why?