One card is randomly selected from a deck of cards. find the odds against drawing a spade greater than 2 and less than 7.

(simplify your answer.)

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

Properties seen when one one substance changes to another are known as properties

Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17°c. this system uses a regenerator as well as reheating and intercooling – the intercooler returns the air to the inlet temperature. the pressure ratio across each compressor is 4 ; 300 kj/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20°c. determine the system’s thermal efficiency. assume isentropic operations for all compressor and the turbine stages and use constant specific heats at room temperature. (0.378)