Knowing that the tension in cable ad is 405, determine (a) the
angle between cable ad and the boom ab, (b) the projection on ab of
the force exerted by cable ad at point a.

Avolume of 2.65 m3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 264 k, 5.6 bar. the air receives 432 kj by work from the paddle wheel. assuming the ideal gas model with cv = 0.71 kj/kg • k, determine for the air the amount of entropy produced, in kj/k