Question

5. What is the density of a cube with a side length of 50.0 mm and a mass of 115 grams?

I need help with this urgently.

Answer 1

Mass of the cube is 15 g and length of each side of the cube is 50.0 mm.

First calculate volume of cube as follows:

`V=a^(3)`

Here, a is length of each side of the cube.

Putting the value,

`V=(50.0 mm)^(3)=1.25* 10^(5) mm^(3)`

Now, density is defined as mass per unit volume, thus,

`d=(m)/(V)`

Putting the values,

`d=((15 g))/((1.25* 10^(5) mm^(3) ) =0.00012 g/mm^(3)`

Therefore, density of cube is
`0.00012 g/mm^(3)`.