science for homework

Question

A rectangular cube has a length of 1.2 cm, a width of 2.4 cm, and a height of 3.0 cm. Its mass is 21.6 g. What is its density?

Answer 1

We know Density= mass/volume

mass is given, m=21.6 g

so, we have to find the volume

v=length*width*height

v=1.2*2.4*3 = 8.64 cm³

^Therefore,

^{density=21.6/8.64}

^{d=2.5 kg/m^3}