You would put the item on a triple beam Balance or any other type of scale
Use a digital mass scale or a triple-beam-balance scale to find the mass of a regular solid.
mass/volume
i dont know u answer it
mass/volume=density
A scale
You need to know the mass of the solid.
You measure its mass and volume and then density = mass/volume.
find the weight and devide it by constant "g=9.81".
Take an elemental mass on the solid hemisphere. Let the mass be in thin form of discs. The centre of mass lies at the centre of the disc. Integrate the whole function to get the c.o.m.
mass over volume
A solid has a mass
nM=m moles of solid multiplied by Molar mass (Atomic mass on periodic table) = Mass of solid