The overall value for this quantity can be calculated knowing two j and two m quantum numbers in aproduct involving many square roots and factorials. The commutator of this quantity with the Hamiltonian iszero, but the commutator for two of its component operators equals i times h-bar times the operator of theother component. Spherical harmonics are eigenfunctions of this quantity. This quantity equals h-bar timesthe square root of the azimuthal quantum number, times that number plus one. Vector addition of two formsof this quantity occurs in L-S coupling. Areal velocity is constant because it is conserved. For 10 points, namethis quantity that classically equals moment of inertia times angular velocity, and is symbolized L. 
The overall value for this quantity can be calculated knowing two j and two m quantum numbers in aproduct involving many square roots and factorials. The commutator of this quantity with the Hamiltonian iszero, but the commutator for two of its component operators equals i times h-bar times the operator of theother component. Spherical harmonics are eigenfunctions of this quantity. This quantity equals h-bar timesthe square root of the azimuthal quantum number, times that number plus one. Vector addition of two formsof this quantity occurs in L-S coupling. Areal velocity is constant because it is conserved. For 10 points, namethis quantity that classically equals moment of inertia times angular velocity, and is symbolized L. 