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Calculate and compare the ozone concentration in ug/m^3 for a polluted day in Mexico City (210 ppbv ozone, 30 C, 0.77 atmospheres pressure) and the ozone concentration in the stratosphere (8 ppmv ozone at 30 km). Use the Standard Atmosphere to get pressure and temperatures for the strarosphere at 3- km. The US Standard Atmosphere is a reference temperature and pressure profile for the lower atmosphere of the Earth widely used by engineers and scientists.
If the discharge is 500cfs, what power output may be expected from the turbine. Assume that the turbine efficiency is 90% and that the overall head loss is 1.5V 2/2g, where V is the velocity in the 7 ft penstock.
If a flow of 5.0 cfs is to be carried by an 11000 ft cast-iron pipeline without exceeding a head loss of 137 ft, what must the pipe diameter be
The inlet of loe pressure turbine is 500Kpa and 500°C. Condenser operates at 10 Kpa. Determine the mass flowrate through boiler needed to produce 5000KW of power.
In polluted areas of Texas, registered vehicles must undergo an annual emissions inspection. In Fort Bend County (near Houston), 27 vehicles failed the emissions test, from among 200 randomly selected vehicles.
A suburban street receives storm water runoff at a rate of 2.0 L/m-s (one each side). the street has a slope of .8 percent and a cross slope of 2 percent, n = .013. If the street is 10 m wide and can be totally covered by water (depth = 0 at the midp..
the most famous geyser in the world old faithful in yellowstone national park has a mean time between eruptions of 85
The area shown is revolved about the x axis to form a homogeneous solid of revolution of mass m. Using direct integration, express the mass moment of inertia of the solid with respect to the x axis in terms of m and h
For a beam made of 2 materials with different moduli of elasticity,show that the shear stress formula τ =VQ/lt remains validprovided that both Q and I
A fireman reduces the exit area on a nozzle so that the velocity inside the hose is quite small relative to the exiting velocity. What is the maximum exiting velocity and what is the maximum height the water can reach
An electronic chip internally generates 1.5 Watts of heat energy that must be dissipated to ensure its reliable operation. A fan, with an exposed area of 10cm^2 is attached to the chip so the heat can be transferred away by convection.
If the pulleys are fixed to the shaft, determine the magnitude of the tension T and the x,y,z componenet sof reaction at the smooth thrust bearing A and smooth journal bearing B.
Two routes connect an origin and a destination and the total trips between them is 15,000 veh/hr. Route 1 has a free flow travel time of 4 mintutes and travel time increases by 3 minutes and for each additonal 1000 vehicle in flow, and route 2 has a ..
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