Test GSCI110-P 20. A cubic tank hold 1000 Kg of water. What are the dimensions o

Question

Test GSCI110-P 20. A cubic tank hold 1000 Kg of water. What are the dimensions of the tank in meters? The density of water 1 g/cm Must show work. Partial credit applicable 21. What volume of iron would be needed to balance a 1 cm sample of lead on a two-pan laboratory balance? The density of iron is 7.87 g/em3. The density of lead is 11.4 g/cm3 Must show work. Partial credit applicable 22. What volume of copper would be needed to balance a 1 cm3 sample of lead on a two-pan laboratory balance? The density of copper is 8.96 g/cm3. The density of lead is 11.4 g/cm Must show work. Partial credit applicable

Explanation / Answer

20.

Mass = 1000 kg

density = 1 gm/cm^3 = 1000 kg/m^3

We know that

Mass = density*Volume

Volume = M/d

Volume = 1000 kg/(1000 kg/m^3)

Volume = 1 m^3

In cubic tank

Volume = a^3

where a = side of cube, So

a^3 = 1 m^3

a = (1 m^3)^(1/3)

a = 1 m

Side of cubic tank = 1 m

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