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Need to solve these problems:
9.2, 9.11 (use weight in place of mass. The above water part weighs its mass, but the underwater part has negative mass equal to the mass of the underwarer part minus the mass of the water displaced by the underwater part. The answer will involve the densities of the buoy and water, as well as geometric size of the buoy.), 9.17 (assume that the chain is uniform), 9.18, 9.19
Please see attached file