Find the length of the side of a cube of iron that has a mass of 140 g.?

Question

Iron has a property such that a 1.00 {\rm m}^{3} volume has a mass of 7.86 \times 10^{3} {\rm kg} (density equals 7.86 \times 10^{3} {\rm kg/m^3} ). You want to manufacture iron into cubes and spheres.

ron has a property such that a 1.00 {\rm m}^{3} volume has a mass of 7.86 \times 10^{3} {\rm kg} (density equals 7.86 \times 10^{3} {\rm kg/m^3} ). You want to manufacture iron into cubes and spheres.

also Find the radius of a solid sphere of iron that has a mass of 140 g.

Answer 1

v=a^3
and
v=m/p
so
a=qube root of v

a=(140/7.86)^(1/3)=2.61 cm

Answer 2

Cube root of (140/7.86) centimeters.