1. In 1638, Galileo estimated that a tree over 300. ft tall would collapse under its own weight. Using the modern theory, determine the diameter of the base of such a tree.
2. What is the maximum height of a California redwood tree whose base diameter is 10.0 ft if its weight density is 40.0 lbf/ft3 and its elastic modulus is 1.30 × 106 psi?