Question

Find the mass of an ice cube of edge 2cm.The density of ice is 916 kg/cubic metre

Answer 1

Answer:

edge of cube=2cm=0.02m

volume of cube=(edge)^3=(0.02)^3=0.000008m^3

mass=density×volume =916×0.000008=0.007328kg=7.328g=7328mg

Answer 2

Answer:

Density =mass/volume

2cm=0.02×0.02×0.02=0.000008(cubic metre)

So mass will be:

916=916×0.000008

mass=0.007328