1.Calculate following specific volumes: CO2: 10degrees c, 80 percent quality; Water: 4MPa, 90 percent quality; Nitrogen: 120K, 60 percent quality
2.Cwo schemes are shown for hanging a large number of flower pots. side by side on an outdoor porch. the flower pots are to have 72cm spacing. each flower pot weighs 126 N. determine the force in wire ab
3.The specified concrete strength fc for a new building is 6000 psi. Calculate the required average strength fc for the concrete ( a) if there are no prior test results for concrete with a compressive strength within 1000 psi of fc made with sim-ilar materials.