For ten points, identify this important quantity in physics, defined as the integral of the Lagrangian over time, and symbolized S.
If this quantity corresponding to a system is an integral invariant under a continuous symmetry transformation, there exists a corresponding conserved current. The Euler- Lagrange equations are derived by demanding that the variation of this quantity is equal to zero vanish for fixed endpoints; that equation is known as Hamilton's principle or the principle of least this. For ten points, identify this important quantity in physics, defined as the integral of the Lagrangian over time, and symbolized S.
If this quantity corresponding to a system is an integral invariant under a continuous symmetry transformation, there exists a corresponding conserved current.
{action} (prompt on “S”)