Question

A rectangular block has dimensions 2.9 cm x 3.5 cm x 10.0 cm. the mass of the block is 615.0 g. what is the volume and density of the block? (answer it with correct numbers of significant figures)

Answer 1

The volume of the block is 101.5 cm³ and the density is 6.1 g/cm³.

Step-by-step explanation:

To find the volume of a rectangular block, we multiply the length, width, and height dimensions together. In this case, the dimensions are 2.9 cm x 3.5 cm x 10.0 cm. Multiplying these together gives us a volume of 101.5 cm³.

The density of an object is calculated by dividing the mass by the volume. In this case, the mass of the block is given as 615.0 g. Dividing this by the volume of 101.5 cm³ gives us a density of 6.1 g/cm³.

Answer 2

Density is the ratio of the substance's mass to volume. It is an extensive property, meaning it does not depend on the amount of the substance. The ratio is always fixed per identity of a substance. The density is equal to:

V = 2.9 cm x 3.5 cm x 10.0 cm = 101.5 cm³
Density = 615 g/101.5 cm³ = 6.06 g/cm³