a rectangular prism box which is floating on water has a length L =1200mm, breadth = 800mm, height = 500mm and mass of 52kg. when the box is loaded with the suspended hexagonal mass, its immersion is 300mm, and when it the mass is placed inside the box, the depth of immersion increases to 360mm. The specific weight of water = 9810 N/m2. The volume of the string is negligable. What is (a) the volume, and (b) the specific weight of the hexagonal mass?