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You place a sphere of radius R=1.54 m and of density ρ = 0.75g/cm^3 in a...

You place a sphere of radius R=1.54 m and of density ρ = 0.75g/cm^3 in a pool of clean water. The sphere begins to float and a portion of the sphere begins to show. What is the height of the portion that shows above the water? What minimum force should you press on the sphere to make it sink completely in the pool? Show your complete work step by step.

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