Nika asked:


The Sears Tower in Chicago has an approximate floor area of 418,000 m². How may square feet of floor is this?

A six-pack of 12 oz soft drinks sells for $2.59, and a 2.0L bottle of the same soft drink sells for $1.59. What is the cost in dollars per liter for each?

Copper has a specific heat of 0.092 cal/(g • ?C). When 52.7 cal of heat is added to a piece of copper, the temperature increases from 22.4 ?C to 38.6 ?C. What is the mass of the piece of copper?

Assume that 50.0 cal of heat is applied to a 15g sample of sulfur at 20 ?C. What is the final temperature of the sample if the specific heat of sulfur is 0.175 cal/(g • ?C)?

When 100 cal of heat is applied to a 125g sample , the temperature increases by 28?C. Calculate the specific heat of the sample and compare your answer to the values in Table 2.6. What is the identity of the sample?