Heat engine X has an efficiency of 67%. Heat engine Y has an efficiency of 82%. Which best compares these two heat engines? Heat engine X moves more thermal energy from cold to warm areas than heat engine Y. Heat engine X releases more energy to the surroundings than heat engine Y. Heat engine Y releases more energy to the surroundings than heat engine Y. Heat engine Y moves more thermal energy from cold to warm areas than heat engine X.

What types of radiation make up the electromagnetic spectrum?

Robin is swinging back and forth from a trapeze. in which of the following situations is his kinetic energy being transformed into potential energy

Tornadoes form in unusually violent thunderstorms when there is sufficient (1) instability and (2) wind shear present in the lower atmosphere. elaborate on what does instability mean when discussing the formation of a tornado? a) dry air in the middle atmosphere being rapidly cooled by rain b) winds at all levels of the atmosphere are strong and turn with height c) an isolated strong thunderstorm just ahead of a squall line that merges with the squall line d) very warm, humid conditions in the lower atmosphere; cooler than usual conditions in the upper atmosphere