Small objects are delivered to the 2 - m inclined chute by a conveyor belt A which moves at a speed V1 = 0.3 m / s . If the conveyor belt B has a speed V2 = 0.9 m / s . and the objects are delivered to this belt with no slipping , the coefficient of friction Ik between the objects and the chute is 0.5 , calculate the incline angle ( Ⓡ ) of the chute .

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.