A 43. 9-g piece of copper (ccu= 0. 385 j/g°c) at 135. 0°c is plunged into 254 g of water at 39. 0°c. Assuming that no heat is lost to the surroundings, what will the final temperature of the system be?.

The correct answer is b, social stratification is needed for a society to exist. marxist theory regarding social stratification is that due to the differing economic capacities among people in society, a natural separation occurs between those that own the means of production and those that sell their labour in the production chain. 

Answerthe ability to use knowledge and skills to manage financial resources effectively

Uh whats the