How much does the block of wood weigh

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A solid block of wood is a cube whose volume is 1x10^-3m^3. When dropped into a swimming pool, it floats such that 20% of it is above water. How much does the block of wood weigh? (Use 10^3 kg/m^3 for the density of water.) PLEASE EXPLAIN. The answer is 7.8 im just trying to understand the problem so if u could show the steps with numbers i'd appreicate it.

Reference no: EM13271647

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