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Determine the uniform flow depth in a trapezoidal channel with a bottom width of 8 ft and side slopes of 1 vertical to 2 horizontal. The discharge is 100 ft3/s. Manning roughness factor is 0.015 and
If the 10-lb block passes point A on the smooth track with a speed of va = 5 ft/s determine the normal reaction on the block when it reaches point b.
North City must choose between two new snow-removal machines. The SuperBlower has a $70,000 first cost, a 20 year life, and an $8000 salvage value. At the end of 9 years , it will need a major overh
a ferric chloride dosage of 40 mg/l and an equivalent dosage of lime are used to coagulate a water. (a) how many pounds of ferric chloride per million gallons are used
The in-situ bulk density of the sandy silt is 1.92 Mg/m^3 and its average water content is 13%. determine: a) the total volume of the sandy silt that must be removed from the borrow pit for constructi
Design a parshall flume to handle 24mgd in a 10ft wide channel at a downstream depth of 3 ft. If the channel floor is at elevation 65.7ft, what is the water elevation upstream of the flume
For unidirectional carbon/epoxy tape at a 60% fiber volume fraction, calculate E11 and E22. Given Ef= 211 GPa and Em =10 GPa. Calculate the fiber weight fraction. Given pf=1.95 g/cm3 and pm =1.3 g/c
An aquifer has a hydraulic conductivity of 12 ft/day and an effective porosity of 17% and is under a hydraulic gradient of 0.0055 m/m. A. Compute the specific discharge in m/s.
Suppose that under severe operation conditions, the lifetime, in months, of a transisitor is exponentially distributed with parameter d = 0.2. a. Find the probability that such a transistor lasts lo
Water with a static pressure of 1.96kN/M2 flows through an 800 mm diameter pipe. A pitot tube pressure gage in this pipe reads a pressure of 5.88 kN/M2. Determine the velocity (V)
If variable Test(i,j) is selected so the first column represents the student number (1,2,..., 32), 2nd column represents the score of the first homework, 3rd column represents the score of the 2nd h
The magitude of the power input to the compressor is 7,5kW and there is heat tranfser from the compressor to the surroundings at a rate of 0.15kW. Kinetic and potential energy are negligible.
Given the manometer reading at A is 100 kPa, D = 10 cm, d = 5 cm, VA = 2 m/s, and specific weight of water is 9800 N/m3, what is the manometer reading at B. Note that flow rate (Q) is constant and Q
A tangent section of highway has a -1.0% grade and ends at station 4+75 and elevation 82 ft. It must be connected to another section of highway that has a -1% grade and that begins at station 44+12
Create 3 user defined functions to use in the script. function "flip" simulates the flip of one coin with the state "s" of the random number generator as the input argument, and the nes state "s" an
The compound bar carries the axial forces P and 2P. Find the maximum allowable value of P if the working stresses are 40 ksi for steel and 20 ksi for aluminum, and the total elongation of the bar is
A constant-head test was conducted on a sample of soil 15cm long and 60 cm^2 in cross-sectional area. The quantiities of water collected was 50 cm^3 in 20 seconds undera a head difference of 24 cm.
In a constant-head permeability test a sample of soil12 cm long and 6 cm in diameter discharged at 1.5*10^-3 of water in 10 minutes. The head difference in two piezometers A and B located at 1 cm an
A gravity thickener receives 33.000 Lpd of wastewater sludge and increases the solids content from 3.0% to 7.0% with 90% solids recovery. Calculate the volume of thickened sludge.
how to use the bisection method on the van der waals equation Problem 1 (15 Points) The van der Waals equation gives a relationship between the pressure P (in atm.), volume V (in L), and temperature
The flow of water over a weir, can be computed by Q=5.35LH^(3/2), where Q is the volume low rate of water in cubic feet per second, L is the length of weir in feet, and H is the height of water over
the velocity varies linearly with time throughout the nozzle. the velocity at the base is 1t and at the tip is 4t. what is the local acceleration midway along the nozzle when t=2s
Choose a pipe to be used as a tension member to resist a service dead load of 10 kips and a service live load of 25 kips. The ends will be connected by welding completely around the circumference of
An 8-inch water main with a flow rate of 14 ft3/sec raises 100-feet. At the beginning of the main the pressure is 110 psig and drops to 50-psig at the end. For this water main calculate the head los
Determine the mass of the earth knowing that the mean radius of the moons orbit about the earth is 238.910mi and that the moon requires 27.32 days to complete one full revolution about the earth