(14%) Problem 4: Some of the excitations of a diatomic molecule, like HCI, can be modeled as two masses connected by a spring. Although a classical model isn't quite correct (see Quantum oscillators -- discrete states) we can use the transition frequencies to give us some sense of the strength of the effective spring that connects molecules. Equilibrium position takes 3 x 10 's M , Maximum stretchA 50% Part (a) Given that the time to go from its equilibrium position to its maximum stretch takes about 3 x 10-13 s, estimate the effective spring constant, k, that the model will need to use to connect these two masses to get the right oscillation time. Give your result in N/m.} State the assumptions 1you used to answer part {a} and explain how you came to the number 1you estimated