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A plant is to be constructed that will emit 3.5 metric tons of hydrogen sulfide per day. One of the design criteria is that the concentration 1 km downwind from the stack must not exceed 120 micrograms/m3. Initial plume rise is neglected. Estimate the required stack height for wind speeds of 4 m/s and 8 m/s.
A contaminant in water is traveling through a saturated clay layer under a hydraulic gradient of 0.15. The clay has a hydraulic conductivity of 2 x 10^(-7) cm/s, a moisture content of 19%, and a Gs of 2.65.
The blower on an air conditioning unit produces 80 cubic feet per minute of air in the ductwork. What is the air flow in cubic meters per hour
What couple moment does he exert. How much could he exert if he moved his hands to the ends so that his hands are 254 inches apart. What force must he apply at the ends to achieve the same couple moments as when he held his hands 18 inches apart.
A larger-diameter pipeline will cost $2.1 million installed, but its operating cost will be only $8000 per month. Which pipe size is more economical at an interest rate of 1% per month on the basis of an annual worth analysis
A runs slope a distance of 156.777 m from one point to another point at a rate of +1.5%. What is the corresponding horizontal distance between the points?
Assuming that the aggregate has negligible absorption, calculate the temperature of the fresh concrete. Also calculate how much ice is required to reduce the temperature of the fresh concrete to 61 ºF.
Calculate deformation of the truncated equilateral triangular steel pyramid. The pyramid has the height h of 156mm truncated at the top by 2mm and the base side s of 127mm.
Calculate the max capillary rise of water between 2 verticle glass plates spaced .25mm apart and the minimum capillary drop if the same plates are placed .25mm apart are in mercury
Reservoir A (water surface elevation = 1300 ft) is connected to reservoir B (water surface elevation=250 ft) by 6,000 ft of 14 inch diameter cast iron pipe (e = 0.005 ft. Neglecting all minor losses
Assume that the interfacial tension between oil-water is 22 dynes/cm and the contact angle through water is 93
The water table is at a depth of 1 m. Compute the effective normal stress and the shear stress acting on a plane rotated 60 degrees clockwise from the horizontal at a depth of 2.5 m in this deposit.
The absolute viscosity and density of water are 1.4X10^-3 Pa-s and 998 kg/m^3, respectively. For a head loss of 0.1 m, determine the filtration rate (m/d) if the depth of this layer of sane is 0.1m
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