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A catchment area consist entirely of loamy sand, which typically has a saturated hydraulic conductivity of 30 mm/h, average suction head of 61 mm, and porosity of .44. Prior to a rain event the soil has an initial moisture content of θi = 0.076. The catchment area is estimated to have a depression storage of 5 mm. You are in the process of designing a stormwater management system to handle the runoff from this area, and have selected the following 1-h storm as the basis of your design:
a) The time of ponding (tp, minutes)
b) The infiltration depth (F) generated by the design storm,
c) The infiltration rate (f) of the soil at the end of the storm,
d) The volume of runoff (Q, m3) generated by the design storm.
The bund channel is to be formed by the embankment only. The horizontal distance between two bund s is 50 m. The 1-hr rainfall expected during the recurrence interval of 10 yrs is 8 cm/hr.
Determine the actual field weight required to mix a 4 bag mix using the mix proportions given below. The excess moisture contet of the sand is 6% and that of the gravel is 2% Component Weight ..
Determine the evaporation rate for a reservoir if the wind speed is 40 mph and the surface temperature is 15 degrees Celsius and the overlaying temperature is 25 degrees Celsius. and the relative humidity is 30 percent
An airplane with a weight of 10,000lb/f is flying at 600ft/s at36,000ft., where the airplane pressure is 3.3 p.s.i.a. and thetemperature is -67 degrees F. The lift coefficient is 0.2. The spanof the wing is 54 ft. Calculate the wing area and minimum ..
Do the problem again but for an alum or iron floc with an overflow rate 20 m3/day.m2?
A hurricane has an average rainfall of 9 in over a 200 mile^2 watershed. What is the reservoir in acre-ft that would be required to contain 20% of the rain completely
The reference current for the DAC0808 is 2.0 mA. With the DAC output connected to the inverting input of an op amp with a feedback resistor of 5.0 kohms, what is the op amp output voltage with a digital input of 0x80
Determine the minimum distance from the diversion that a road sign should be located informing drivers of the temporary change on the highway. The letter height on the road sign is 5 inches.
The posItIon of a particle along a straight line is given by s = (t 3 - 9t 2 + 1St) ft, where t is in seconds. Determine its maximum acceleration and maximum velocity during the time interval 0 :5: t :5: 10 s.
Drawdown at an observation well 15m from the pumped well is 3.0 m and a drawdown at a second observation well 150 m away is 0.30 m. Find the hydraulic conductivity of the aquifer.
A "slap shot" in the game of hockey can cause an increase in the velocity of a 5 oz puck from 2 ft/sec to 110 ft/sec. What would be the corresponding increase in the kinetic energy (ft-lb) of the puck.
Processing begins when the lane reaches capacity, what is the uniform deterministic arrival rate if the vehicle queue is cleared in 35 minutes after vehicles begin to arrive (in veh/min.)?
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