1. The problem statement, all variables and given/known data Consider a harmonic oscillator with mass=0.1kg, k=50N/m , h-bar=1.055x10-34 Let this oscillator have the same energy as a mass on a spring, with the same k and m, released from rest at a displacement of 5.00 cm from equilibrium. What is the quantum number n of the state of the harmonic oscillator? 3. The attempt at a solution ok, so i was wondering, why can't i use angular momentum quantization? meaning mvr = n(h-bar) so i divide both sides by r2 i get m(k/m)-1/2=n(h-bar)/r2 make n subject, sub in all values, i get 5.29*1031.. which happens to be twice the correct answer. so did i make a careless mistake somewhere? or was i never been able to use this formula? thanks!