wesfleridor
20.12.2019 •
Engineering
Ariver has a flow velocity of 3 cm/s, an aeration coefficient of 0.5 d–1, and a temperature of 20°c. after initial mixing with wastewater, the river has a do concentration of 8.0 mg/l, an ultimate bod of 25 mg/l, and a bod decay constant of 0.8 d–1. neglecting the effect of sedimentation on bod removal, determine the distance over which the do is less than or equal to 7 mg/l.
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Ответ:
Answer with explanation:
The point where the medians of triangle intersect is called Centroid of triangle.
Here, In ΔP QR,
PS ,QT , and RU are the medians.
The point of intersection of , PS and QT is at point (4,5).
So, the point of intersection of RU and PS will be also at (4,5).