math
posted by Dan on .
the density of a diamond is 3.52 grams per cubic centimeter. Sally has a diamond that has a volume of 20 mm^3. What is the weight of the diamond?.

m=mass[gr]
V=Volume[cm^3]
rho=densty[gr/cm^3]
1cm=10mm
1mm=1/10 cm
1mm^3=(1/10)^3=1/1000=0.001cm^3
V=20*0.001=0.02 cm^3
m=V*rho=0.02*3.52=0.0704 gr
P.S.
rho is small Greek letter rho