Xiao Ming used the density of 1.5 × 10 & sup3; kg / M & sup3; to build a "boat". The volume of the clay he used was 20cm & sup3; the maximum drainage volume of the boat was 100cm & sup3;; ask: the maximum buoyancy of the boat he built? (g = 10N / kg)

According to Archimedes principle, f floating = g row, g row = P water, GV row = 1000 times 10 times 0.0001 = 1n

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