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A float and lever system is used to open a drain valve, as shown in Figure The float has a volume V and a

A float and lever system is used to open a drain valve, as shown in Figure The float has a volume V and a density pf. The density of the water is pw. Find the maximum force available to open the drain valve, given that the hinge is frictionless. Hint: first consider the forces acting on the cork float, then consider the free-body diagram of the gate. -2/3-1/3- Hinge

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