1. The problem statement, all variables and given/known data 55. Solid A, with mass M, is at its melting point TA. It is placed in thermal contact with solid B, with heat capacity CB and initially at temperature TB (TB > TA). The combination is thermally isolated. A has latent heat of fusion L and when it has melted has heat capacity CA. If A completely melts the final temperature of both A and B is: A. (CATA + CBTB − ML)/(CA + CB) B. (CATA − CBTB + ML)/(CA + CB) C. (CATA − CBTB − ML)/(CA + CB) D. (CATA + CBTB + ML)/(CA − CB) E. (CATA + CBTB + ML)/(CA − CB) correct answer is A ????? 2. Relevant equations Q=mL+mCdeltaT 3. The attempt at a solution in A Q1=ML+MCATfinal-MCATA in B Q=mCBTfinal-mCBTB -Q1=Q -ML-MCATfinal+MCATA=mCBTfinal-mCBTB -ML+MCATA+mCNTB=MCATf+mCBTf Tf=(MCATA+mCBTB-ML)/(MCA+mCB) how they get rid of the m in the above equation?