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Estimate the amount of depression storage (inches and cubic feet) in a 6-arce parking lot using the following rainfall and discharge data. The discharge data were measured at the only outlet in the parking lot. Rainfall = 0.88in. Rainfall excess= 5cfs average for one hour. The total duration of runoff. Also list assumptions for the other variables of the hydrologic cycle.
If the flow that you determined in (b) occurred as rainfalluniformly over the earth's surface, what would be the mean annualrainfall (cm/y)?
If r = (theta)2 and theta = 2t, find the magnitude of r dot and theta double dot when t = 2 s
A standard five-day BOD test is run using a mix consisting of fourparts distilled water and one part wastewater (no seed). Theinitial DO of the mix is 9.0 mg/L, and the DO after five days isdetermined to be 1.0 mg/L. What is BOD5 ?
A disinfection process for potable water treatment is described by first order kinetics with a rate constant of 0.08 minute. An ideal plug flow reactor is used with a hydraulic residence time of 1 hour. What is the expected efficiency of the syste..
An engineer has to design a rod made with the same steel to carry a load of 150 kips without yielding. He desires to have a factor of safety against yielding of 1.5. What should be the cross-sectional area of the circular rod
A tow truck is using a cable to pull a car up a 15 degree hill. If the car weighs 4000 lbs and the cable has a diameter of .75 inches, find the stress in the cable when the truck comes to a stop while on the hill. Ignore friction between the car and ..
The headloss per meter for galvanized iron pipe (.02 m diameter) hL= 0.110m and for (0.15m diameter) hL= 0.490m. Determine the trade off between the cost and the head loss (hL).
A 2000-lb wheel load is to be supported by aggregate over soil with a maximum bearing pressure of 1000 lb/sqft. What depth of aggregate is needed if the angle theta is 40 degrees
Determine the diameter of commercial steel pipe required to convey a minimum of 300 cfs of water at 60 deg F with a head loss of 1.2 ft per 1000 ft of pipe. Assume pipes are available in the following nominal diameters (inches)
calculate the magnitude and direction of the horizontal force exerted on the contraction (not on the water). Assume that there is no loss of energy in the contraction. Use the gamma of water is equal to 1000 kg/m^3
samples of 20 rivets for a steel structure are checked for quality every hour.the probability of finding a bad rivet
A beam is 11.5m long. There are two lifting points at 2.2m from each end of the beam. Beam self weight = 4kNm superimposed live load = 12kNm. How to determine what the bending moments are at the lifting points
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