450 g =0.9921 lb I hope this helps you out.
Energy can be one answer! There are many, but energy is a main one.
Density is given by:
D = M/V
D = density, M = mass, V = volume
Given values:
M = 3.7g, V = 4.6cm³
Plug in and solve for D:
D = 3.7/4.6
D = 0.80g/cm³
