In physics, the reduced mass is the “effective” inertial mass appearing in the two-body problem of Newtonian mechanics. It is a quantity which
Mixing ratio (mass ratio)
chemistry and physics, the dimensionless mixing ratio is defined as the abundance of one component of a mixture relative to that of all other components.
Center of mass (for two particles)
The center of mass of a distribution of mass in space is the unique point where the weighted relative position of the distributed mass sums to zero.
Reflectance of the surface of a material is its effectiveness in reflecting radiant energy. It is the fraction of incident electromagnetic power that is
The Sherwood number (Sh) (also called the mass transfer Nusselt number) is a dimensionless number used in mass-transfer operation. It represents the ratio
Amount of Substance
Amount of substance (n) is the number of atoms, molecules, ions, or other specified group of entities present in a compound. It is the ratio of Mass /
Buoyancy mass (effective mass)
The effective mass of an object which is submerged and suspended via a cord, is the mass of a reference object on the a dry-land pan of the balance that