The mass of 1 cm³ of aluminum is 2.7 g, the mass of 1 cm³ of lead is 11.3 g. Which cube is heavier

The mass of 1 cm³ of aluminum is 2.7 g, the mass of 1 cm³ of lead is 11.3 g. Which cube is heavier than an aluminum cube with an edge of 3 cm or a lead cube with an edge of 2 cm?

1. The specific gravity of aluminum is: ma = 2.7 g / cc;

2. The specific gravity of lead is: mc = 11.3 g / cc;

3. The edge of the aluminum cube: La = 3 cm;

4. The edge of the lead cube: Lc = 2 cm;

5. Volume of the aluminum cube: Va cc;

Va = La ^ 3 = 3 ^ 3 = 27 cc;

6. Mass of the aluminum cube: Ma = ma * Va = 2.7 * 27 = 72.9 g;

7. Volume of the lead cube: Vc cube cm;

Vc = Lc ^ 3 = 2 ^ 3 = 8 cc;

8. Lead cube mass: Mс = mс * Vс = 11.3 * 8 = 90.4 g;

9.Ms – Ma = 90.4 – 72.9 = 17.5 g.

Answer: A lead cube is heavier than an aluminum cube.