1. The problem statement, all variables and given/known data Onto a thick brass rod we attach equally long glass thread. At what temperature change will the glass thread break if the temperature coefficient of linear expansion for brass is α1= 20 x 10 ^-6 K^-1, and for glass is α2= 7 x 10^-6 K^-1? Young’s (elastic) modulus for glass is E1= 7 x 10^10 N/m², and shear modulus for glass is σ1= 7 x 10^7 N/m². 2. Relevant equations Linear thermal expansion: α(L)= ΔL/ L(0)ΔT Young’s (elastic) modulus: E= FL(0)/ AΔL 3. The attempt at a solution And from here I have no clue how to build a relationship between linear thermal expansion and elastic modulus and how to incorporate all the terms given to find the result.:uhh: Can someone please give me some hint? Thank you for helping!