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The average carbon content of gasoline is 2,425 grams of carbon per gallon. The carbon fraction oxidized to CO2 is 100%. Assume a test vehicle consumes 1000 gallons. Growing forests store carbon. Through the process of photo synthesis, trees remove carbon from the atmosphere and store it as cellulose, lignin, and other compounds. A certain forest of Douglas fir has a net sequestration of 3.27 metric tons of Carbon/hectares/year. How many acres of forest would need to be planted to offset the use of 3 vehicles?
Using a unit analysis, calculate the value of the K term in the rational method equation (Q = K C I A) in English and SI respectively.
a tank contains 650 cubic feet of water.the water will be applied on 7 acres of land. What would be the the depth of water im millimeters on the land assuming that there are no losses
A ssume that one half of the energy incident on the collector goes to this reservoir, which, in turn, serves as a source for a heat engine. If the temperature of the atmosphere is 70 F,
The water level of the reservoir is 150 ft above that of the tank. The intake end of the pipeline is square-edged (k=0.5) and the water coes into the tank through a submerged end (k=1). You are told that the pipe is 12 in in diameter
At a local engineering firm, a supervisor thinks about buying a new copy machine for $700 but only wants to keep it for 3 years. Using the DDB find the book value of the machine at the end of 2 years.
The telescope of the instrument is 5.25 ft above the ground station, whose elevation is 415.65 ft. What is the elevation of the tip of the spire? (Ignore atmospheric refraction and earth curvature)
Rock masses that donot have the desired properties for a givencivil engineeering application are improved. The method of choicedepends on the purpose for which the rock mass is intended. amongthe common methods for increasing the strength of fissured..
At the instant when angle theta= 50 degree, the horizontal guide is given a constant upward velocity v0 = 1.3 m/s. For this instant calculate the force N exerted by the fixed circular slot and the force P exerted by the horizontal slot on the 0.60..
Explain how mechanical strength, melting temperature , and thermal exapntion are related at the atomic level. specifically, how do they relate to each other and the bonding energy between the atoms
A motorcyclist travels around a curved path that has a radius of 200 . While traveling around the curved path, the motorcyclist increases speed by 1.25 . a) If the motorcyclist starts from rest, determine the time needed to reach an acceleration of 5..
what building science principles are involved, how successful the measure is in practice, what limitations there are in using this measure, and how much can typically be saved
a closed tank contains two straified non misicble fluid layers and compressed air. the fluid of the tank is saline water (relative density 1.036) with a total depth of 3.5m. the top fluid layer is oil (relative density of 08.2) with a depth of 0.6..
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