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A 100-m reach of sewer is to have a minimum capacity of 200 L/s. The street elevation at the upper manhole is 305.55 m and at the lower manhole is 303.05 m. Determine an appropriate pipe diameter and slope for this reach, and establish the pipe invert elevations at the upper and lower manholes. Assume that a minimum earth cover of 2 m above the pipe crown is required.
Determine the moment of inertia and the radius of gyration of the shaded area with respect to the x axis.
a tape is calibrated and found to measure 100.04ft between the 0- and 100-ft marks. what measurements should be laid out to establish a horizontal distance of 682.25ft
Convert a stress of 4500 Newtons per square millimeter to kipsper square foot. Use complete and utterly perfect unit analysismethods. Do one one calculation line.
Starting from rest, a 4.0-kg body reaches a speed of 8.0 m/s in 2.0 s. What is the net force acting on the body?
Field tests have shown that the Horton equation best describes the composite roughness of the channel. Find the capacity of the main channel and the lateral extent of the floodplains for a 100-year flow of 1590m^3/s.
A structural steel beam is attached to a column with bolts. The downward force on the connection is 150 kips. What bolt sizes must be used if the allowable shear stress is 25.0 ksi
If the interfacial tension between air-mercury interface in a capillary tube is 480 dynes/cm and the contact angle through the mercury is 140, what would be the capillary pressure between oil and water
A stabilization pond is designed for a 35-day detention time. If the pond is maintained at a capacity of 40 acre-feet, what is theaverage gpd flow to the stabilizaiton pond
A 32000 lb airplane lands on an aircraft carrier and is caught by an arresting cable. The cable is inextensible and is paid out at A and B from mechanisms located below deck and consisting of pistons moving in long oil-filled cylinders.
Water leaves a turbine at 18.5 fps and enters a tailrace having an average velocity of 1.5 fps. What is the submerged discharge head loss? By what percentage is this loss reduced if the provision of a draft tube increases the discharge flow area to s..
Compare to units, A and B. A has a new cost of $42,000, at life expectancy of 14 years, a salvage value of $4,000, and an annual operating cost of $3,000. B has a new cost of $21,000, a life expectancy of 7 years
Estimate the constant rate of withdrawal (in m^3/s) from a 1375 ha reservoir in a month of 30 days during which the reservoir level dropped by 0.75 m in spite of an average inflow into the reservoir of 0.5 Mm^3/day.
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