Bob has 513 g of coffee at 359 K with a specific heat of c = 0.71cal/g K in his favorite UCF mug. He added 49 g of milk to his coffee with a temperature of 285 K and a specific heat of 0.36cal/g K.
Bob needs your help to calculate the final equilibrium temperature of his coffee is after the milk is added.
Calculate the equilibrium temperature Teq of the coffee with milk.