discuss the physics in thae detail section?

blackheart asked:


small engines may be air cooled, but larger engines eg. motor cars, are usually water cooled. electrical equipment eg. tramsformers, is oil cooled

2. air is cooled when it is blown past coils in which liquid is a continously being evapourated.

3. ice cubes dropped into a cup of hot water float on the surface of the water. when thye ice cubes melt, there is no change in the water level.

4. a burn resulting from contact with steam 100 degrees celcius cause greater injury than one from contact with the same mass of water at 100 degrees celcius

Tanisha