Question

A solid plastic cube has a side length of 4 cm. The mass of the cube is 80 g. What is the density of the plastic in grams per cubic centimetre?

Answer 1

`rho_"plastic cube"=5/4*g*cm^-3............`

Explanation:

By definition, `rho="Mass"/"Volume"=(80*g)/(4*cm^3)=(80*g)/(64*cm^3)`

`=5/4*g*cm^-3.................`

Would the cube float on water?