A) A 150 g sample of water (initially at 45.0oC)is mixed with a 200 g sample of water (initially at 84.0oC). Find the final temperature of the system
B) A 25 g sample of iron (initially at 800.00oC)is dropped into 200 g of water (initially at 30.00oC). The final temperature of the system is 40.22oC. Find the specific heat of iron.