d. top chord to top cho 2. Which of the following statements about ceil- ing joists is not true? a. They should never be spliced between bearing points b. They usually span the narrow width of the building c. They are usually in line with the wall studs d. They provide a nailing surface for finish- ing material​

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

Determine the damped natural frequencies and the steady state response of a decoupled damped forced two degrees of freedom system. 10ä1 + 2q1 20q1 10 cos t; 10q2 +4q2 + 40q2 10 cos t

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.