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Suppose that a commercial apple orchard uses pesticides in the production of apples. In the process, dangerous fumes drift across a nearby neighborhood.
If this externality is not internalized, does the market overproduce or under produce apples? What does it mean to overproduce or under produce a product?
A water treatment plant has 6 settling tanks that operate in parallel (the flow gets split into six equal flow streams), and each tank has a volume of 600 m3.
for a uniformly loaded square area, what is the stress to load ratio at a depth of 2B below the CENTER of the loaded area
what are the main points which create necessity of new railway line? explain in detail different types of surveys conducted in railway work.
A 20-foot long W8X67 is suspended from one end. If the modulus of elasticity is 29,000ksi, determine the following.
An airplane with a Clark Y airfoil cross-section weighs 3500 lbs. The chord length is 6ft and the wingspan is 36 ft. Determine the: a) Minimum speed and power to take off, if the angle of attack is 12.4 degrees.
What is the smallest particle size (density 2.65 g/cm3) that will be removed in a horizontal grit chamber 10 m long and 1.0 m deep if the flow rate is 1000 m3/hr. Assume the temperature of the water is 25°C.
A development is being planned within a 250-acre watershed. The present land use is 120 acres of pasture, with soil type B(CN=61), and the rest soil type D (CN=80). The Tc is 54 min. and the 2-year, 24-hour storm depth is 4 in.
Indoor air quality is an under appreciated health hazardous. The air quality in a building can be modeled as a CSTR. Suppose that the carpet in a new office building releases formaldehyde at a rate of 10 micrograms per hour.
Design a cyclone that has a collection efficiency between 80% and 85% (use parcticle size distribution given below). you must assume a dpc of 4.2 microns,an inlet gas velocity of 25 m/s and a K of 15.The unit must handle 20,000 cfm of contaminated ..
HOCL is added to water in a tank as a disinfectant. after equilibrium is reached it is found that the pH of the water in the tank is 8.2 and the gas phase partial pressure is the head space of the tank is 0.2E-7 atm. (not: henry's law constant for..
A hydraulic transition 100 ft long is used to connect two rectangular channels, 12ft and 6ft wide. The design discharge is 500 cfs, mannining coefficient=.013 and the slopes of the channels are both .0009.
Use the doubling time approximation (3.5) to estimate the exponential rate of growth that would produce those numbers. Use the exponential growth equation (3.6) to find the growth rate
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