find the density of metal cylinder if the diameter is 3.02mm and the height is 0.00591km in cm3 the mass of the cylinder is 0.847hg

Answer 1

density = mass/volume
so the answer must be in g/cm^3, not just cm^3.

Converting all the bizarre units to g and cm,

.847hg = 84.7g
v = pi * .302^2 * 591 = 169.3 cm^3

now you should be able to come up with the density

Extra credit: if the cylinder is made of a metallic element, what is the most likely element?