The ideal rocket equation can be derived from its conservation.
For a control volume defined inside a boundary layer over a non-flat surface, the flux of this quantity can be determined using a von Kármán integral. The diffusion of this quantity in a fluid is represented by the numerators of the Schmidt and Prandtl numbers, which contain the kinematic viscosity. The sum over all particles of this quantity for the particle dotted with the position of the particle gives the scalar virial. In special relativity, this quantity is unified with (*) total energy into a 4-vector. This quantity is equal to Planck's constant divided by the de Broglie wavelength. The ideal rocket equation can be derived from its conservation. The change in this quantity is equal to the impulse. For 10 points, name this quantity which is conserved in collisions and is equal to mass times velocity.
For a control volume defined inside a boundary layer over a non-flat surface, the flux of this quantity can be determined using a von Kármán integral.
linear momentum