Consider a macroscopic object of mass 90 grams confined to move between two rigid walls separated by 2 m. What is the minimum speed of the object? What should the quantum number n be if the object is moving with a speed 1 ms-1? What is the separation of the energy levels of the object moving with that speed?

Consider a macroscopic object of mass 90 grams confined to move between two rigid walls separated by 2 m. What is the minimum speed of the object? What should the quantum number n be if the object is moving with a speed 1 ms-1? What is the separation of the energy levels of the object moving with that speed?