The thin-walled, 1-m-diameter tank shown below is closed at one end and has a mass of 90 kg. The open end of the tank is lowered into the water and held in the position shown by a steel block having a density of 7840 kg/m³. Determine a) the reading in the pressure gage at the top of the tank and b) the volume of the steel block. 1 0.6 m Water 3.0 m Open End Cable Steel Block