Question: A solid brass sphere of 30-cm diameter is used to hold a cylindrical buoy in place (Figure P2.8.3 l in seawater (sp. gr. = 1.03).

A solid brass sphere of 30-cm diameter is used to hold a cylindrical buoy in place (Figure P2.8.3 l 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?

50 cm 30 cm sp. gr. 13.5 Figure P2.8.3

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