Patm Patm (b) Re Ptop Prop 8 Problem 12 (Capillary Action) Water has an angle of contact equal to 30 with a certain type of plastic. A tube of radius r = 0.5 mm, made of this plastic, is dipped in a beaker of water, as shown to the right. The surface tension of water is 0.073 N/m. (a) Patm +--2-- A. What is the radius of curvature (Rc in the figure to the right) of the meniscus? Give your answer in units of mm. B. What height in the tube does the water rise relative to the liquid surface outside (h in the figure to the left)? Give your answer in cm.