A wooden deck is supported by 4 times 4 (actual size 3.5 times 3.5 inches) columns. If the deck is not braced with diagonal members or attached to the house, then each column can be considered to be...

A wooden deck is supported by 4 times 4 (actual size 3.5 times 3.5 inches) columns. If the deck is not braced with diagonal members or attached to the house, then each column can be considered to be free at the top and fixed at the base, where it is embedded in concrete. a. If the free length of the columns is 12 feet, what load can each column support before buckling is predicted? E = 1.5 times 106 psi. b. How does your answer to part a change if the columns are 6 times 6 (actual size = 5.5 times 5.5 inches) instead of 4 times 4.