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Three reservoirs are connected by three pipes with hA = 100 f t, hB = 20 f t, hC = 0 f t, L1 = 1000 f t, L2 = 500 f t, L3 = 400 f t and D1 = D2 = D3 = 1 f t. Determine flow rate into or out of each reservoir if friction in each pipe is 0.02. Neglect minor losses.
Normal human skin and clothing temperature indoors is approximately 30 o C. In order to maintain this temperature, one student sitting in a classroom gives off heat at a rate of 14 watts per degree K
There are no interchanges in the vicinity of this freeway segment. If the peak-hour factor is .90 and all of the drivers are regular users, what is the level of the service of this compound-grade freeway segment?
A car weighing 4000 pounds strikes the stopping barrier depicted below head on at a speed of 70 mph. The stopping force in the barrier is a function of how far the car penetrates into the barrier.
Consider tetrachloroethene (PCE) in water. The vapor pressure of PCE is 0.0251atm. Henry's constant for PCE at 25°C is 26.9 atm-L/mol. Estimate the aqueous concentration of PCE in water at equilibrium
estimate the mass and volume of sludge produced from unreated wastewater without and with the use of ferric chloride for the enhanced removal of TSS. Also, estimate the amount of lime required for the specified ferric schloride dose.
assume that the earth is a smooth sphere and a steel band wrapped around the equator. if 10ft of steel is spliced into the band, what will be the resulting height of the band above the earth surface
the flow rate is 600 cfs. for a long distance upstream the bottom slope is 2.5%. the bottom slop of the channel abruptly changes to 0.6% and continues at that slope for a long distance determine the location of the hydraulic jump.
What are two types of variables that can be used for values that are less than 128, and describe what is the difference between the variables, how to declare them, and the memory allocated and the numerical range for both.
Determine the components Fa and Fb of the 4.2 kN force along the oblique axes a and b. Determine the projections Pa and Pb of F onto the a- and b-axes.
A water treatment plant has 6 settling tanks that operate in parallel (the flow gets split into six equal flow streams), and each tank has a volume of 600 m3.
a low rate trickling filter plant gives 95% BOD5 removal. the primary clarifier removes 33% of the BOD5 applied to it. the secondary sludge amounts to 0.029lb dry solid/cap-day. if the raw wastewater has a BOD5 of 0.17lb/cap-day.
A 0.75 m high rectangular sharp-crested weir extends across a 2.2m wide rectangular channel. When the head is 32 cm, determine the flow rate
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