Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
The concentration of UBOD in a river entering the first of two lakes that are connected in a series is equal to 20m/L. If the first-order BOD reaction rate constant (K) equals 0.35 d^-1 and complete mixing occurs in each lake, what is the concentration of UBOD at the outlet of each lake? The flow in the river is equal to 4000 m^3/d and the volume of the first and second lake is 20,000 and 12,000 m^3, respectively. Assume steady-state conditions.
Part B- If the length of the river connection between the two lakes is equal to 3km and the velocity in the river is equal to 0.4 m/s, determine the concentration of UBOD in the effluent from the second lake.
compute normal and critical depths in a concrete culvert(n=0.015)with a diameter of 36in.and a bed slope of 0.002ft/ft if the design discharge is 15cfs.is the slope steep or mild?reap for S= 0.02ft/ft.
The 90lb door has its center of gravity at G. A)Determine the components of reaction at hinge A if hinge B resists only forces in the x and y directions and A resists forces in the x,y,z directions.
A piston-cylinder contains 40 kg water of which 20 kg is saturated liquid. The equilibrium pressure of the system is 100 kPa. a) Find the system initial volume b) The water undergoes an isothermal expansion until the pressure reaches 10 kPa.
A cylindrical pressure tank has internal dimensions of 14.0 inches diameter, and 36 inches length from end to end. Max. recommended pressure at 70degF is 200 PSI. The cylinder has a safety relief valve which is set at 250 PSI.
A four-lane freeway (two lanes in each direction) is on mountainous terrain with 11ft lanes, a 5ft right-side shoulder, interchange spacing of one every 10 miles, and a 60mph base free-flow speed.
A baseball is hit from home plate and travels over the center field fence. What would the trajectory of the baseball look like if air-resistance was not factored in
A river 5 m deep flows over a sand deposit. The saturated unit weight of the sand is 18 kN/m^3 and the unit weight of water is 9.8 kN/m^3. At a depth of 5 m below the river bed:
The station of a PI of a horizental curve is 60+20. The horizental curve has a degree of 4 and a length of 400ft. the othere given design perameters include. Superelevation runoff rate is 1/400. width of the pavement is is 15ft.
consider a spacecraft that is positioned directly between the earth and moon.the mass of the moon's is approximately 7.35 X10^22 kg, and at the instant under consideration, the moon is 3.8 X 10^8 km from earth.
For a narrow horizontal rectangular beam of width b and depth h (cross section), determine a) what is the vertical shear stress distribution (tau)xy at each point y along the cross section,
The Big Bear town council has asked that you determine whether the discharge of the town's wastewater into the Salmon River will reduce the DO below the state standard of 5.00 mg/L at Little Bear, 5.79 km downstream.
A Steel plate weighing 205 lb with a center of gravity at point G is supported by a roller at point A,a bar DE, and a horizizontal hydraulic cylinder BC. Negelcting all weights of all members except for the plate,
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd