Cindy is at the park. She throws a paper airplane toward the north. There is a strong wind blowing from the west to the east. What will most likely happen? A. The paper airplane will turn toward the west. B. The paper airplane will turn toward the east. C. The paper airplane will turn toward the south. D. The airplane will keep going straight north.

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)