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Problem 2: A wooden block floats in water. The surface area of the block is A and the total height is 0.12m. Find the height of the block laid under water. Take the density of water as 1000 kg/m³ and the density of wood as 690 kg/m³. Hint: The buoyancy force exerted by water is the weight of the water displaced by the wooden block.

Fig: 1