Extracted text: A cube 80 mm on a side is made of a rigid foam material and floats in water with 60 mm of the cube below the surface. Calculate the magnitude and direction of the force required to hold it completely submerged in glycerin, which has a specific gravity of 1.26. QUESTION #1 F, = ? Glycerin 80 mm 60 mm 80 mm Water Fb 80 mm (b) Submerged (a) Floating %3D