In environmental engineering (a specialty area in civil engineering), the following equation can be used to compute
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In environmental engineering (a specialty area in civil engineering), the following equation can be used to compute the oxygen level c (mg/L) in a river downstream from a sewage discharge:
c = 10 – 20 (e–0.15x – e–0.5x)
Where x is the distance downstream in kilometers
(a) Determine the distance downstream where the oxygen level first falls to a reading of 5 mg/L. Determine your answer to a 1% error. Note that levels of oxygen below 5 mg/L are generally harmful to gamefish such as trout and salmon.
(b) Determine the distance downstream at which the oxygen is at a minimum. What is the concentration at that location?
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Related Book For
Numerical Methods For Engineers
ISBN: 9780071244299
5th Edition
Authors: Steven C. Chapra, Raymond P. Canale
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