There are four oscilloscopes, A, B, C, and D, in a laboratory that are equipped with individual indicator circuits. These indicator circuits give out a logic 1 anytime the scope malfunctions. Design a circuit that would be able to indicate that three or more of the scopes are malfunctioning.

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.