The force required to flex a nasal strip and apply it to the nose is 0.22 N; the energy stored in the strip when flexed is 0.0023 J. Assume the strip to be an ideal spring for the following questions. Find the distance through which the strip is flexed. (cm)Find the force constant of the strip. (N/m)

A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?

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)