Please help asap Which choice best explains how you could use the information about the falling pine cones to answer Question 1.

A. If both pine cones are falling at the same speed, the pine cone that weighs less will have more kinetic energy.

B. If both pine cones are falling at the same speed, the pine cone that weighs more will have more kinetic energy.

C. If both pine cones weigh the same, the pine cone that falls faster will have more kinetic energy.

D. If both pine cones weigh the same, the pine cone that falls slower will have more kinetic energy.

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)