Answer:
The density of the material is 7.5 g/m^3
Explanation:
The volume of a rectangle is:
Volume = Length*Height*Width
Replacing with data:
Volume = 5 m * 2 m * 4 m = 40 m^3
Density is computed as follows:
Density = Mass/Volume
Replacing with data:
Density = 300 g/40 m^3
Density = 7.5 g/m^3
(Answer creds: jbiain)
