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An 1kg aluminum block (p=2.7 g/cm^3) is dropped into a freshwater lake (p=1.0g/cm^3) and it quickly...

An 1kg aluminum block (p=2.7 g/cm^3) is dropped into a freshwater lake (p=1.0g/cm^3) and it quickly reaches terminal velocity at which point it continues to sink at a constant speed of 2.0 m/s.

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