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density = mass/volume
Mass divided by volume
Eauations are used in physical science to find measurements. For example, you can calculate force using the equation F=m*a.You can find density, speed and other measurements using equations.Hope this helps
There are several methods that can be used to calculate the density of a metal ball. The density of a metal ball can be derived from the fact that the volume is: 4*(pi)*r^3/3 and the denisty is mass/volume. If the mass and moment of inertia are known but the dimensions of the metal ball are not, then you can use the fact that the moment of inertia of the ball is 2m*r^2/5 and solve for m to get r=(5I/2)^.5 and plug in the value for r into the volume equation then calculate the density of the ball by dividing the mass by the calculated volume.
The dimension of the side in cm are required to calculate the volume (cm3) and density in g/cm3 or specific gravity of the substance is then used to calculate the mass. Mass = Volume x Density