(11a) A cube of wood having a side dimension of 19.21 cm and a density of 586 kg/m3 floats on water. What is the distance from the top surface of the cube to the water level? Submit Answer Tries 0/10 (11b) What mass of lead must be placed on top of the cube so that the top of the cube is just level with the water surface? :] SubmitAnswer Tries 0/10 " a (12) The spring of a pressure gauge has a force constant of 913 N/m, and the piston attached has a diameter of 1.65 cm. When the gauge is lowered into water, at what depth does the piston move in by 0.433 cm from its position at the surface? :] Submit Answer Tries 0/10 A F \\ Vacuum 0 a (13) 1.425 kg of glass (p = 2.60E+3 kg/m3) is shaped into a hollow spherical shell that just barely floats in water. What are the inner and outer radii of the shell? Do not assume that the shell is thin. Input the inner radius first. SubmitAnswer Tries 0/ 10 SubmitAnswer Tries 0/10