What metal is the bearing sleeve made of if its weight is 3.9 kg and the volume is 500 cm / 3?

Given:

m = 3.9 kilograms is the mass of the bearing sleeve;

V = 500 cm ^ 3 = 0.0005 m ^ 3 – the volume of the bearing sleeve.

It is required to determine the metal from which the bearing sleeve is made.

Let’s find the density of the substance from which the bearing sleeve is made:

ro = m / V = 3.9 / 0.0005 = 7800 kg / m ^ 3.

According to the table of metal densities, we find that this density corresponds to steel and bronze. Since bronze is a brittle material, not suitable for use in bearings, steel remains.

Answer: The bearing sleeve is made of steel.