The term is the exchange of energy with the mean motion, due to wave-current interaction.

The attribution of a mean motion to such a motion as the moon's was possibly new.

The mean motion of the flying planet followed that arc scrupulously.

Unfortunately, the parabolas did not meet smoothly at the mean motion, but met with a discontinuity or jump.

When allowing for varying aspect angles and changes in mean motion, this result is consistent with past studies.

A large enough volume means that the mean motion of galaxies within this volume is equal to the Hubble flow.

The mean motion is a function the semi-major axis, a, in AU.

The semi-major axis is known if the mean motion and the gravitational mass are known.

Again n is the mean motion.

U indicates the mean motion of the fluid.