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14-05-2020
Physics

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A 25 kg rock resting on the bottom of a lake must be moved from the paths of boats. The rock has a density of 2350 kg/m^3. What force is needed to lift the rock while under water?

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seanpen seanpen

14-05-2020

Answer:

The force needed is the weight of the rock minus the buoyant force.

Explanation:

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