Two times this quantity plus four times a related quantity give the second time-derivative of moment of inertia in a gravitational field. For a given 
Two times this quantity plus four times a related quantity give the second time-derivative of moment of inertia in a gravitational field. For a given inverse-square force, this quantity's average value times onehalf equals that related quantity, according to the virial theorem. When a force is inverse-square, this quantity's value is inversely proportional to the first power of distance. This quantity is denoted by V and subtracted in the Lagrangian. This quantity for a spring can be found by integrating Hooke's Law and is equal to "one-half k x-squared." For a mass in a constant gravitational field, this quantity equals "m-gh". For 10 points, identify this energy stored in a system, contrasted with kinetic energy.
Two times this quantity plus four times a related quantity give the second time-derivative of moment of inertia in a gravitational field.