Задача id9554

The vessel contains two immiscible liquids, the densities of which are different: p1 < p2. A homogeneous rectangular block, immersed entirely in the liquid, floats at the interface between liquids. The density p3 of the block material is greater than the density p1 of the upper liquid, but less than the density p2 of the lower liquid (p1 < p3 < p2). What fraction of the volume of the block will be in the upper liquid?

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