A brass ring of diameter 10.00 cm at 19.5C is heated and slipped over an aluminum rod of diamter 10.01 cm at 19.5C. Assume the average coefficients of linear expansion are constant. a) To what temperature must this combination be cooled to separate them? is this possible? b) If the aluminum rod were 10.03 cm in diameter, what would be the required temperature? Is this possible? B(brass) = 19x10^-6 B(alum) = 24x10^-6 Well...let's see... first I thought of heating the brass until it was wide enough to slip over the tube, and then I tried to set up some kind of relationship and failed miserably. oh and by the way I'm new! hi guys!