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A factory emits 70 g/s of NO2 from an effective stack height of 40 m. The wind speed is 5.5 m/s and it's a cloudy night. There is an atmospheric inversion at an elevation of 100 m.
A)Estimate the ground level NO2 (ug/m^3) at a point 8 km directly downwind of the factory
B)Esitmate the ground level NO2(ug/m^3) at a point 8 km directly downwind of the factory, if there was no inversion.
a municipal landfill has available space of 16.2 ha at an average depth of 10 m.seven hundred sixty-five (765)m^3 of solid waste is dumped at the site 5 days a week.
the weigt w causes atension of 100 lb ic cable cd. if d=2ft, what is the moment about the z axis due to the force eserted by he cable cd at point c.
A 40 oF breeze of 10 miles per hour blows over the top of a round open-top water cooling tank which has a bulk temperature of 100 oF. What is the rate of energy in kW that enters into the air
A container ship carries 2000 units. It must be unloaded andre-loaded in a 48 hr turnaround. Two cranes are available. Find therate that the trucks line up, load and pass under each crane.
The tank contains water to depth of 2m and oil (SG=0.8) on top of the water to a depth of 1m. Determine the magnitude and location of the resultant force acting on one end of the tank (i.e. 3m high by 3m wide).
A geotechnical report has suggested an allowable bearing pressure of 200kPa. Determine the minimum size of the pad footing 2 metres wide for a steel column if a factor of safety of 2.0 is recommended
A proposed square footing carrying a total load of 500 kips is to be constructed on a uniform thick deposit of dense cohesionless soil. The soil's unit weight is 135 pcf, and its angle of internal friction is 38 degrees.
Compute the electrical conductivity of a 7.4-mm diameter cylindrical semiconductor specimen 28 mm long in which a current of 0.20 A passes in an axial direction.
Name the three factors that influence the degree to which martensite is formed throughout the cross section of a steel specimen. For each, tell how the extent of martensite formation may be increased.
An energy efficiency project has a first cost of $300,000, a life of 10 years, and no salvage value. Assume that the interest rate is 9%. The most likely value for annual savings is $60,000.
Water at 20 Degree C is pumped at a constant rate of 9m^3/h from a large resevoir resting on the floor to the open top of a anexperimental absorption tower.
The If the probability that fluorecent light has a useful life of at least 500 hours is 0.85, find the probabilities that among 20 such lights
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