In Chapter 3 we saw that the electric forces acting between neighboring atoms behave very much like springs, with the spring stiffness being in the range of up to a few tens of Newtons per meter. Consider a molecule made up of two atoms of the same kind, each atom having a mass of 7.5 x 10- kg. Suppose that the center of the spring does not move, in which case you can model the motion of one of the atoms as that of a single atom connected to a half-length spring. If we should observe that a gas of these molecules emits photons whose energies are integer multiples of 2.2 x 10- eV, what would be the stiffness of the half-length "spring"? half-length k, N/m

In Chapter 3 we saw that the electric forces acting between neighboring atoms behave very much like springs, with the spring stiffness being in the range of up to a few tens of Newtons per meter. Consider a molecule made up of two atoms of the same kind, each atom having a mass of 7.5 x 10- kg. Suppose that the center of the spring does not move, in which case you can model the motion of one of the atoms as that of a single atom connected to a half-length spring. If we should observe that a gas of these molecules emits photons whose energies are integer multiples of 2.2 x 10- eV, what would be the stiffness of the half-length "spring"? half-length k, N/m