Answer:
Mass, m = 1170 grams
Explanation:
Side of a cube of iron is 15 cm
Density of iron is [tex]78\ g/cm^3[/tex]
It is required to find the mass of the cube of iron. Density is given in terms of mass and its volume as :
[tex]\rho=\dfrac{m}{V}[/tex]
m is mass of iron cube
[tex]m=\rho \times V\\\\m=78 \times 15\\\\m=1170\ g[/tex]
So, the mass of the cube of iron is 1170 grams.