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.

10 kg of co2 is initially contained at 400 kpa and 300 k. the gas constant for carbon dioxide is 189 j/lkg k) and has a specific heat ratio, k, of 1.289. isentropic expansion then occurs until the pressure is 200 kpa. a) determine the initial volume of co2 in m. b) determine the final temperature in k. c) determine the work done by the system during the expansion kl.