Question

The density of a certain type of plastic is 0.62 g/cm3. If a sheet of this plastic is 10.0 m long, 1.0 m wide, and 1 cm thick, what is its mass?

Answer 1

First, you need to change meter to centimeter. So the volume is 1000*100*1=10^5 cm3. And the mass is 0.62*10^5=6.2 *10^4 g.

Answer 2

Answer: 62,000g

Step-by-step explanation:

Density is defined as the ratio of mass of a body to its volume.

Density = Mass/Volume

Given density = 0.62g/cm³

Volume = length×width×thickness

Length = 10m = 1000cm

Width = 1m = 100cm

Thickness= 1cm

Volume = 1000×100×1

Volume = 100,000cm³

Mass = Density × volume

Mass = 0.62g/cm³ × 100,000cm³

Mass = 62,000g

Its mass is 62,000g

Note that the units have to consistent, hence the reason for conversion of the meters to centimeters.