How can you determine the relative ages of the moon's maria and highlands? a. compare the relative magnetic field above each region radioactive dating of rocks from each region b. compare the number of craters that are seen on each region c. compare the relative depth of the regolith

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.