Answer:
Mass of the steel cube = 7800 kg
Volume of the steel = 1.025 cubic centimetre
Explanation:
Given:
The density of the steel = 7.8
Side of the cube = 12 cm
(1)The mass of steel cube :
We know that,
[tex]Density = \frac{Mass}{Volume}[/tex]
We are given with density and sides of the cube
then volume of the cube
= [tex](side)^3[/tex]
= [tex]10^3[/tex]
= 1000 cubic centimetre
Now
[tex]7.8 = \frac{mass}{1000}[/tex]
[tex]mass = 7.8 \times 1000[/tex]
mass = 7800 kg
(2)volume of steel:
Given the mass = 8 kg
[tex]Density = \frac{Mass}{Volume}[/tex]
Substituting the values
[tex]7.8 = \frac{8}{volume}[/tex]
[tex]volume = \frac{8}{7.8}[/tex]
volume = 1.025 cubic centimetre
