D. Although the promise of healing was primarily intended for the people. of God, His healing hand of mercy may be extended even to the unsaved. Jesus healed a man blind from birth whose only understanding of the Lord. was that He must have been sent from God (See John 9:35-37).
Flexural strength is a measure of the tensile strength of concrete beams or slabs. Flexural strength identifies the amount of stress and force an unreinforced concrete slab, beam or other structure can withstand such that it resists any bending failures.
The steel weights are tweaked for mechanical tubing, and will be less accurate for structural tubing. The moduli of elasticity used are 29,700,000 psi for steel and 10,000,000 psi for aluminum. Use at your own risk. Or you'll be sorry.