Question

A 27.0 kg iron weight lifting plate has a volume of 3430 cm3 . what is the density of the iron plate in g/cm3?

Answer 1

Weight of iron weight lifting plate = 27.0 kg.

1 kg = 1000 grams

27.0 kg = 27 * 1000 = 27000 grams.

Volume of the plate = 3430 cm^3.

Density is given by formula (ρ) =
`(Mass)/(Volume)`

Plugging values of mass and volume in above formula, we get

ρ=
`(27000 \ grams)/(3430 \ cm^3)`

Dividing 27000 by 3430, we get

ρ=7.87 g/cm^3.

Therefore, the density of the iron plate 7.87 g/cm^3.