The zombie apocalypse has occurred. All power generation facilities are no longer working. As a result, your only option to get gasoline is to siphon it from other cars. To siphon you stick a tube into the tank making sure that the end of the tube outside has a lower elevation than the liquid level in the tank. You then fill the tube with liquid usually by sucking on it. You then back away, spit whatever gasoline when into your mouth, and, if done properly, the tank drains by itself. Develop an equations that can be used to estimate the flow rate from the tank and the pressure at points 1, 2, and 3. Evaluate your expressions for H = 8 ft, h = 3 ft, and D = 2in with water in the tank.

A3-mm-thick panel of aluminum alloy (k 177 w/m-k, c 875 j/kg-k and ? = 2770 kg/m) is finished on both sides with an epoxy coating that must be cured at or above t,-150°c for at least 5 min. the production line for the curing operation involves two steps: (1) heating in a large oven with air at ts,0-175°c and a convection coefficient of h, 40 w/m2. k, and (2) cooling in a large chamber with air at 25°c and a con- vection coefficient of he 10 w/m2.k. the heating portion of the process is conducted over a time interval te which exceeds the ime required to reach 150°c by 5 min (h = r + 300 s). the coating has an emissivity of ? = 0.8, and the temperatures of the oven and chamber walls are 175 and 25°c, respectively. if the panel is placed in the oven at an initial temperature of 25°c and removed from the chamber at a safe-to-touch tempera ture of 37°c, what is the total elapsed time for the two-step curing operation?