The solid rock of the cliff in this photograph is part of a continent. What is the relationship between the continent and Earth's plates?\. A. The continent is next to but is not part of a plate. B. The continent is on top of a layer of water that is above a plate. C. The continent is directly on top of a plate but is not part of the plate.

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.