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The pH of clean rain is influenced by the partial pressure of CO2 in the atmosphere. In addition, acid rain can be formed when sulfur dioxide (SO2) is discharged into the atmosphere.
i) The atmospheric CO2 concentration could rise to 400 ppmv by 2020? Calculate the pH of clean rain in this scenario.
ii) Now assume that the atmosphere also contains 20 ppbv of SO2 . Calculate the pH of this acid rain?
What is the risk of constructing a harbor which will be unprotected from wave attack during its construction.
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Determine the minimum necessary clearance height of the overpass and the resultant elevation of the bottom of the overpass over the PVI. (ignore the cross-sectional width of the overpass)
Explain CBR method of pavement design with one example.
List five soil and water management strategies appropriate for agricultural use of ultisols. 100-150 word limit.
a wall 8 ft high is 3/3/8 ft. from a house. find the shortest ladder which will reach from the ground house when leaning to the wall.
A corporation issues a new 10 year bond that has a coupon rate of 4.65% with quarterly dividend payments. Alex purchases 200 of these bonds at a price of $98.75, for a total investment of $19,750. Assuming he holds them to maturity, what will be..
Determine the maximum allowable misclose for this engineering survey using the formula based on the munber of instriunent stations used in the work.
A pre- engineering base line was run down a very steep hill.rather than measure horizontaily down hill with steel tape: surveyor measured the vertical angle with the theodolite and slope distance with 16m steel tape.
Maximum dry unit weight was found to be 114lb/ft^3 at a water content of 13.5% in labratory tests. Results of a field unit weight test were dry unit weight=111lb/ft^3 and a water content 11%.
The velocity along a pathline is given by V (m/s) = s^2 x t^(1/2) where s is in meters and t is in seconds. The radius of curvature is 0.5 m. Evaluate the acceleration along and normal to the path at s = 2m and t = 0.5 seconds.
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