Light reflects off many objects. Which model of light behavior best helps explain this effect7(2 points) оа
Particle model
b
Wave model
Ос
Magnetic model
Od
Electric model

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.