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Air flows steadily between two sections in a long, straight portion of 4 in. inside diameter pipe (D1=D2). The uniformly distributed temperature and pressure at each section are p1=100psia, p2=18.4psia, T1=540 R and T2=453 R. The average velocity air velocity (nonuniform velocity distribution) at section 2 is 1000ft/s (V2=1000ft/s). A) Calculate the density of air flow ate sections 1 and 2. B) calculate the mass flux through section 1.
the flow rate into the lake is 10 m3/s, the surface area of the lake is 1 x 107 m2, and the rate of evaporation from the lake is 6 cm/wk, how long ago did the dumping stop?
Determine the normal depth in a trapezoidal channel with a bottom width of 6.4 ft and side slopes of 1 vertical to 2 horizontal. The discharge is 85 ft3/s. Manning's roughness factor is 0.025 and the channel bottom slope is 0.001
Briefly describe the measures that should be considered for the control of corrosion of embedded steel in concrete.
The diameter of the soil column is 8.0 cm, the length of the soil column is 16.0 cm. The hydraulic head loss across the soil specimen is 6.4 cm. Over a period of 3 min, 350 mL of water is collected at the downstream side of the soil specimen.
If the BOD5 of the river below the mill outfall must not exceed 5 mg/L, what percent removal of organic matter (BOD5) is required by the mill to meet this requirement?
An increment of vertical stress of150kpa compress the sample to a void ratio of1.43. What is the over consolidation ratio of the soil at the unloaded condition.
The motion of a box on a spiral conveyor is defined by the following position vector: r = 0.5sin(2t) i + 0.5cos(2t) j - 0.2t k where r is in meters and t is in seconds. Find the location, velocity, and acceleration when t = 0.8 s.
What is the probability that a random sample of 20 time intervals between eruptions has a mean longer than 95 minutes?
When Eurasia restaurant, serving Eurasian cuisine, first opened along Chicago's Michigan Avenue, its novelty brought many diners.
The entrance to Mt. Hood Meadows (elevation 3,075 ft at the point of crossing) is grade separated from Viking highway (elevation 3,050 ft at the point of crossing) and will have to be connected. The two roadways intersect at a right angle.
calculate the moment of inertia for the Milkyway. Assume it to be a disk.
A chemical is added at the beginning of a water treatment plant at a dose of 750 lb/day. The water treatment plant provides water to a community of 200,000 people and the average water consumption in the city is 110 gallons per capita per day (gpc..
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