part (d) is not half in. SECTION 7.8 (The Nonrigid Box) 7.36 Consider the potential-energy function U(x) 1 kx2. (a) Sketch U as a function of x. (b) For a clas- sical particle of energy E, find the turning points in terms of E and k. (c) If we double the energy, what happens to the length of the classically allowed FIGU region? (Probler 7.37 .Consider the potential-energy function (the Gaussian well) 7.45. U(x)- Un(1- e nun where U and a are positive constants (a)

part (d) is not half in. SECTION 7.8 (The Nonrigid Box) 7.36 Consider the potential-energy function U(x) 1 kx2. (a) Sketch U as a function of x. (b) For a clas- sical particle of energy E, find the turning points in terms of E and k. (c) If we double the energy, what happens to the length of the classically allowed FIGU region? (Probler 7.37 .Consider the potential-energy function (the Gaussian well) 7.45. U(x)- Un(1- e nun where U and a are positive constants (a)