1.) Calculate the energy which has 87.0 % occupancy probability for copper at T=297K . b) Calculate the energy which has 87.0 % occupancy probability for copper at T=960K . Energy should be in electron volts (eV) 2.) Estimate the number of possible electron states in a 1.00 cm3 cube of silver between 0.960EF and E_F(=5.48eV) . Express your answer using two significant figures.

3.) Estimate the differences between rotational energy levels for a spinning baton compared to the energy of the baton. Assume the baton consists of a uniform 29 cm long bar with a mass of 250 g and two small end masses, each of mass 370 g , and that it rotates at 1.4 rev/s about the bar's center. Express your answer using two significant figures.