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A stationary temperature probe inserted into a duct where air is flowing at 250 m/s reads 85°C. What is the actual temperature of air?
Aluminum ion (Al3+) is present in an industrial wastewater at 3 mg/L. The treatment facility wants to precipitate out the aluminum until there is only 0.2 mg/L remaining. What pH is required to acheive this aluminum ion concentration
The testing machin that covers the right range of load is to be chosen. it is expected to load the material up to a strains of 3%. if th material must remain elastic over that range, what would be the maximum load
What are the different types of rocks and explain its composition with its use in brief
A 650 ft. long concrete drainage pipe in old southwest Reno is laid as a straight section and eventually transitions to an earthen trapezoidal channel with rubble sides. The invert elevation of the pipe (i.e., the elevation at the bottom of the pipe)..
A soil borrow material in its natural state in the ground has a unit weight of 85 pfc. When a sample of this soil is dried in the laboratory, its dry unit weight is 72 pfc.
Assuming that silt is equivalent to a liquid having a density of 1760 kg/m3, determine the overturning moment of silt and water about point A.
Consider high pressure steam at 400 degrees C and v =0.01567 m^3/kg. Obtain estimates of the pressure using (a) the van der Waals equation (b) the redlich-kwong equation. The actual pressure is 150 bar.
Estimate the power needed to overcome the aerodynamic drag of a person who runs at a rate of 100 yds in 10 s in still air. repeat the calculations if the race is run into a 20-mph headwind: a 20-mph tail wind.
design a concrete (n = 0.013) channel that will convey 50,000 GPM. It is to be a trapezoidal in cross section with a bottom width of 7.5 feet. The side slopes are to be 1.33:1 (H:V) and it is desired to have the depth of flow constant at 2.0 feet.
A venturi meter is used to measure flow velocity. Given the manometer reading at A is 100 kPa, D = 10 cm, d = 5 cm, VA = 2 m/s, and specific weight of water is 9800 N/m3.
consider a cantilever mass-less beam subjected to a concentrated mass at the tip of the beam.nbspassume length l
Calculate the maximum shear stress developed in a hollow circular shaft with the following dimensions:
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