What is the change in centimeters

Assignment Help Civil Engineering
Reference no: EM13540186

1.A result of a 7-day BOD test performed on a sample from anoligotrophic lake was 10 mg/L. The base 'e' BOD rate constant determined from previous studies was estimated to be 0.10d-1. Determine the ultimate BOD and 5-day BOD of the sample taken from the lake.

2.The evaporation rate from the surface of a 3,650-acre lake is 100 acre-ft/day. Estimate the depth change in the lake in feet during a 1-year period if the net inflow to the lake is 25 cfs. Is the depth increasing or decreasing? What is the change in centimeters?

Reference no: EM13540186

Questions Cloud

Imagine that a relativistic train travels past your lecture : Imagine that a relativistic train travels past your lecture room at a speed of 0.887 c. The passengers of the train claim that when they measure the length of the train using standard meter bars found on the train, the length comes out to be 85.8 ..
Find the moment of inertia around the x-axis and y-axis : 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.
What rate must heat be supplied to this engine : A completely reversible heat engine operates with a source at 1500 R and a sink at 500 R. At what rate must heat be supplied to this engine, in Btu/h, for it to produce 5 hp of power?
Determine the solids retention time : Using the following assumptions, determine the solids retentiontime, the cell wastage flow rate, and the return sludge flow ratefor the Jambalaya shrimp processing plant WWTP.
What is the change in centimeters : The evaporation rate from the surface of a 3,650-acre lake is 100 acre-ft/day. Estimate the depth change in the lake in feet during a 1-year period if the net inflow to the lake is 25 cfs. Is the depth increasing or decreasing? What is the change in ..
Determine the combined amounts of water evaporated : Helium (Hrom an intie) at a rate of 1.5 lbm/s is compressed inan adibatic compressor from an intial condition of 70 F, 14.7 Psiato final condtion of 1070 F, 147 Psia. Determine:
The detention time should be 60 seconds with a velocity : A circular rapid-mix basin with stator blades is to be designed totreat 2.0 million gallons of water per day. The detention times hould be 60 seconds with a velocity gradient of 900s-1
At what height in the resevoirmust the water level be kept : 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.
Find e in terms of b and h to have one type of normal stress : For arectangular section (b(width) x h(thickness) that is subjected to aforce P that is applied at an eccentricity (e) measured from thecenter of area of the rectangle in the h(thickness)direction

Reviews

Write a Review

Civil Engineering Questions & Answers

  Determine average rainfall rate in cfs and rainfall volume

It rains an average rate of 0.4 in/hr in a 600 acre watershed for 3 days. Determine: a) average rainfall rate in cfs b) rainfall volume for the 3 days in acre-ft c) rainfall volume in inches.

  Find the piston mass that will create a pressure inside

A vertical hydraulic cylinder has a 150-mm diatomic piston with hydraulic fluid inside the cylinder and an ambient pressure of 1 bar. Assuming standard gravity, find the piston mass that will create a pressure inside of 1250kPa.

  Determine the depth of cut or fill for the point

The station and elevation of the PVI is 8+17.36 and 76.85 ft. Assume that there will be stakes placed at the PVI, BVC, and EVC, the low (or high) point, and at all the 100-ft stations.

  Will stress cause composite to fail before tensile strength

a ceramic matrix composite contains internal flaws as large as 0.001 cm in length. The plane strain fracture toughness of the composite is 45 MPa sqr(m), and the tensile strength is 550 MPa.

  Determine the dead load per unit of length on a beam

A floor system consists of wide flange steel beams (W18 x 60) equally spaced at 8ft center to center. A 6inch reinforced concrete slab spans between beams. The bottom of the slab is coated with plaster and the top of the slab has ¾inch hardwood fl..

  How to calculate the loads into the horizontal members

what does the free body analysis look like and how to calculate the loads into the horizontal and vertical members of a free standing jib hoist with a 15' boom and 5000 pound capacity

  Calculate the carbon content required at surface of steel

A 0.02wt% C steel is to be carburized at 1200°C in 4 hrs with a point 0.6mm beneath the surface reaching 0.45wt%C. calculate the carbon content required at the surface of the steel.

  Lets design the members if they are made of woodcompression

1.for the pinned frame below subjected to a 500 kn lateral force what are the internal forces in each member? 2.for a

  Determine what is the normal stress at the fixed support

The rod has a uniform cross-section of 53mm2. The external load consists of point loads: two P1 of 3kN, two P2 of 1kN, and one P3 of 7kN. What is the normal stress at the fixed support

  Largest acceptable value of distance for removing a nail

To remove a nail, a small block of wood is placed under a crowbar, and a horizontal force P is applied as shown. Knowing that the maximum vertical force needed to extract the nail is 2600 N and that the horizontal force P is not to exceed 290 N, d..

  Determine at what rate must generated power be sold in order

The motor-generators installed with these pump-turbines have an efficiency of 0.85 when operating as motors and 0.91 when operating as generators. Each pump-turbine uses its own 100-m-long, 150-cm steel penstock.

  Determine if its possible to pull at p without causing wheel

If the coefficient of sratic friction between the wheels at B and the ground is 0.5 determine if it is possible to pull at p=1200 lb without causing the wheels at B to slip or the front wheels of A to lift off the ground

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd