1.Water ?ows at 6 ft/ s through a pipe 500 ft long with diameter 1 in. The inlet pressure p1= 200 psig, and the exit section is 100 ft ft higher than the inlet. What is the exit pressure p2 if the friction head loss is 350 ft?
2.A loose, uncompacted sand fill is 2 m in depth and has a relative density of 40%. Laboratory tests indicate that the minimum and maximum void ratio of the sand are 0.46 and 0.90, respectively. The specific gravity of solids of the sand is 2.65.
What is the dry unit weight of the sand?