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1. A mass and atmosphere loaded piston/cylinder contains 4 lbm water at 500 lbf/in.2, 200 F. Heat is added from a reservoirs at 1200 F to the water until it reaches 1000 F. Find the work, heat transfer, and total entropy generation for the system and its surroundings.
2. A 1-gal jug of milk at 75 F is placed in your refrigerator, where it is cooled down to the refrigerator's inside temperature of 40 F. Assume the milk has the properties of liquid water and find the entropy generated in the cooling process.
The maximum eight-hour average concentration of carbon monoxide (CO) in an urban area is measured to be 17 ppm. The NAAQS is 9 ppmv (equivalent to 10.3 mg/m^3 estimated at P = 1 atm and T=298.25°K).
A subsurface detention basin is installed beneath a street to help prevent flooding. Water from the rain is chanelled into the basin and begins to infiltrate into the ground when it reaches 1ft.
how far back from the front axle would the center of gravity have to be to ensure that the maximum tractive effort developed for front- and rear- wheel-drive options is equal (assume that all other variables are unchanged)
In dating using radiocarbon, the amount of C^14 remaining at the time of measurement is expresed as a percentage of modern carbon. For example that the 30% modern carbon, N/No would be 0.3
for sizing the syst em, the mean cell residence time is selected to be 5 days. the reactoer kinetic constants are u max= 2.4 d^-1 (1/day), Ks=75 mg/L as COD, Y=0.4 VSS/g COD and Kd=0.096 d^-1(1/day)
Determine the cross section of a rectangular beam of uniformly strength for a simply supported beam of 6m span subjected to central concentrated load of 20kN
The current landfill site covers 50 acres, including 5 acres needed for access roads and auxiliary facilities, and has completed one lift on the site of solid waste. If two more lifts are envisioned before closure, how long would it take to complete ..
Can a contractor claim that liquidated damages should be limited Because of political unrest, only 20% of rooms are occupied. Liquidated damages are set to $30000 per day -> reasonable amount Contractor is late 15 days.
two cohernt sources produce interference patern intensity ratio of bright fringe to dark fringe is 9/1. calculate the intensity ratio of sorces.
The weights on the same axles when the truck is empty and leaving the power plant are 10 kips, 12 kips, and 8 kips, respectively. A two lane road is to be designed to serve the power plant and to last for a period of 10 years. a) What is the equiv..
Crude oil is at 50 degrees f (absolute viscosity=2.8*10^-4 lbf*s/ft^2) is flowing through a 24 inch diameter pipe. A pitot-static tube is used to measure the velocity at the center of the pipe
During a drilling operation, the small robotic device is subjected to an (F =) 900 N force at point C as shown. (? = 25°.) Replace this force by an equivalent force-couple system at point O.
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