R m V. E 578 x 10 3 kgm. As long as two of the variables are known the third can be calculated by rearranging the equation.
For a given mass and volume how much physical space a material takes up of an object or substance the density remains constant at a given temperature and pressure.
To obtain the scalar moments of inertia I above the tensor moment of inertia I is projected along some axis defined by a unit vector n according to the formula. Density can be calculated using the mathematical formula expression. Modern technology is very useful in evaluating these formulas quickly and accurately. If the rod has constant density r given in terms of mass per unit length then the mass of the rod is just the product of the density and the length of the rod.