A solid brass sphere of 30-cm diameter is used to hold a cylindrical buoy in place (Figure...

A solid brass sphere of 30-cm diameter is used to hold a cylindrical buoy in place (Figure) in seawater (sp. gr. = 1.03). The buoy (sp. gr. = 0.45) has a height of 2 m and is tied to the sphere at one end. What rise in tide, h, will be required to lift the sphere off the bottom?

Figure