71. On the table is a cylindrical vessel filled with water up to level H = 20 cm from the bottom. If the water (ρ = 1 g / cm3) to float lower thin-glass nickel (ρ '= 8,8 g / cm3), the water level rises to h = 2,2 cm. Determine the level of water in the vessel H1 if glass drown .

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)