Please help with the following physics questions

3 ) @ A METAL ROD AT 35 C IS 64. 260 Cm LONG. RAISING THE TEMPERATURE TO 50 % PRODUCES AN ELONGATION OF 0. 0 212 CM. FIND CD THE COEFFICIENT OF LINEAR EXPANSION OF THE METAL AND THE LENGTH OF THE ROD AT 206. 15 6) A Good COPPER CALORIMETER CONTAINS 300 9 OF WATER AT GONG, A 2009 COPPER BLOCK AT 150 C is DROPPED INTO THE WATER. WHAT IS THE FINAL TEMPERATURE OF THE CALORIMETER AND ITS CONTENTS! ASSUME NO HEAT is LOSS TO THE SURROUNDINGS, THE SPECIFIC HEAT CAPACITY OF WATER AND COPPER ARE 4200 5 kq C: AND 390 5 kq- c.' RESPECTIVELY