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A person dives in to a lake and tries to lift a 528-kg rock (=2700 kg/m3) that is resting on the bottom of the lake.

A person dives in to a lake and tries to lift a 528-kg rock (=2700 kg/m3) that is resting on the bottom of the lake. Determine how much force (in N) they need to apply to lift the rock. Take the density of water to be 1000 kg/m3 and "g" to be 9.8 m/s2

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