Nymphomaniac (film) is part of a trilogy.
In astrodynamics , the characteristic energy is a measure of the excess specific energy over that required to just barely escape from a massive body .. astrodynamics. astrodynamics. specific energy. specific energy. energy. energy. The units are length2time − 2 , i.e. energy per mass .. energy. energy. mass. mass. Every object in a 2-body ballistic trajectory has a constant specific orbital energy equal to the sum of its kinetic and potential energy  :. energy. energy. 2-body. two-body problem. ballistic. ballistics. specific orbital energy. specific orbital energy. where is the standard gravitational parameter of the massive body with mass and is the radial distance from its center .. mass. mass. standard gravitational parameter. standard gravitational parameter. radial distance. radial distance. As an object in an escape trajectory moves outward , its kinetic energy decreases as its potential energy -LRB- which is always negative -RRB- increases , maintaining a constant sum .. energy. energy. Note that C3 is twice the specific orbital energy of the escaping object .. energy. energy. specific orbital energy. specific orbital energy