zero-velocity surface
1Zero-velocity surface — The zero velocity surface is a concept that relates to the N body problem of gravity. The zero velocity surface is particularly significant when working with weak gravitational interactions among orbiting bodies.Galaxy clustersGiven a group of… …
2Surface integral — In mathematics, a surface integral is a definite integral taken over a surface (which may be a curved set in space); it can be thought of as the double integral analog of the line integral. Given a surface, one may integrate over it scalar fields …
3Escape velocity — In physics, escape velocity is the speed where the kinetic energy of an object is equal to the magnitude of its gravitational potential energy, as calculated by the equation,:U g = frac{ Gm 1m 2}{r}.It is commonly described as the speed needed to …
4Capillary surface — In fluid mechanics and mathematics, a capillary surface is a surface that represents the interface between two different fluids. As a consequence of being a surface, a capillary surface has no thickness in slight contrast with most real fluid… …
5Terminal velocity — A free falling object achieves its terminal velocity when the downward force of gravity ( Fg )equals the upward force of drag ( Fd ). This causes the net force on the object to be zero, resulting in an acceleration of zero. Mathematically an… …
6Group velocity — [ Frequency dispersion in bichromatic groups of gravity waves on the surface of deep water. The red dot moves with the phase velocity, and the green dots propagate with the group velocity. In this deep water case, the phase velocity is twice the… …
7Minimal surface — For minimal surfaces in algebraic geometry see Minimal model (birational geometry). Verrill Minimal Surface …
8Areal velocity — is the rate at which area is swept out by a particle as it moves along a curve. In many applications, the curve lies in a plane, but in others, it is a space curve.The adjoining figure shows a continuously differentiable curve in blue. At time t …
9Sagittarius Dwarf Irregular Galaxy — Infobox Galaxy name = SagDIG caption = SagDIG by Hubble Space Telescope credit = NASA/ESA/STScI/AURA type = IB(s)mcite web title=NASA/IPAC Extragalactic Database work=Results for Sagittarius Dwarf Irregular url=http://nedwww.ipac.caltech.edu/cgi… …
10Antlia Dwarf — Infobox Galaxy name = Antlia Dwarf epoch = J2000 type = dE3.5cite web title=NASA/IPAC Extragalactic Database work=Results for Antlia Dwarf url=http://nedwww.ipac.caltech.edu/ accessdate=2006 11 30 ] ra = RA|10|04|03.9 dec = DEC| 27|19|55 dist ly …
