The Air Force is testing a new fighter at Area 51. It can propel the 23368kg fighter with a force of 186197N, and the force of friction between the ground and the fighter is 925154N. The Air Force wants to get their fighter up to its take-off speed of Mach 1.2 (1.2 times the speed of sound) and then stop using the normal brakes on the plane. How long of a runway do they need to build?

Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?