Asatellite has a central bus with a moment of inertia of 50 kg-m^2 about its solar array rotation axis. in addition, it has two solar arrays which each have a moi of 25 kg-m^2 about that axis. if a worst-case, 1 second thruster burn causes an impulse which increases the rotation rate of the full system about this axis by 1 degree/sec, what minimum holding torque would you recommend for each solar array drive?

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)