A model of a machine part made of wood has a mass of 600 g. What mass will this part made of aluminum have?

These tasks: m1 (mass of a machine part made of wood) = 600 g (in SI m1 = 0.6 kg); Let’s assume that dry pine was used to make the model of the part.

Reference values: ρ1 (density of dry pine) = 400 kg / m3; ρ2 (density of aluminum) = 2700 kg / m3.

The mass of a part made of aluminum can be expressed from the equality: m1 / ρ1 = V = m2 / ρ2, whence m2 = m1 * ρ2 / ρ1.

Let’s calculate: m2 = 0.6 * 2700/400 = 4.05 kg.

Answer: A part made of aluminum will have a mass of 4.05 kg.