Asatellite is placed in a circular orbit to observe the surface of mars from an altitude of h above the surface of mars. assume that the radius of mars at the location of the orit is r. if the speed of the satellite is b, derive an expression for the magniturde of the he centripetal acceleration of the satellite.

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.