The mass of an iron screw (p = 7800 kg / m3) is 11.7 g. What is the volume of the screw?

The mass of an iron screw (p = 7800 kg / cm³) is 11.7 g. What is the volume of the screw?

Solution

We take the numerical density of the iron in the density table of the substances and we have:

Iron Density (p) = 7800 kg / cm³

Screw weight = 11.7 g

We apply the body density formula:

p = m / V

7800 kg / cm³ = 11.7 g / cm³ volume

Screw volume = mass / density => 11.7 g / 7.800.000 g / cm³ =>

Screw volume = 0.0000015 cm³ or 1.5 cm³

1 cm³ = 1,000,000 cm³

Mechanics