(10) [7 points] A cylinder of area A and heigh L is partially filled exactly halfway with an unknown fluid. The empty cylinder has mass m. The partially filled cylinder is placed in a tank of water. The exposed height of the cylinder above the waterline is d. (a) Find an expression for the specific gravity of the unknown fluid in terms of the parameters of this problem and the density of water pw. (b) If the unknown fluid is water, and the cylinder is a typical 355 mL soda can of mass 12.0 grams, height L of 12.0 cm, and diameter 6.2 cm, what is the exposed height d