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The self-regulating floodgate ABC, pinned at B, is pressed against the lip of the spillway at C by the action of the 3645-lb weight A. If the gate is to open when the water level reaches a height h = 6 ft, determine the distance x locating the weight A. Neglect the weight of the gate.
calculate the amplitude F0 of the sinusoidal excitation force that is necessary to produce a steady-state vibration with a velocity amplitude of 10 m/s at resonance. what is the corresponding amplitude of the acceleration
water from a waste water treatment plant is released into a receiving pond that has a volume of 5 ac-ft. one of the reasons for doing this is to assure that the chlorine residual is below 0.1mg/L before the water is released to a stream as require..
A rectangular channel is 25ft wide and has a flow of 500 cfs at a velocity of 5ft/s. (a) Determine the specifc energy of water in the channel. (b) What is the criticl depth of water in the channel (c) What is the critical velocity
Consider a steel (iron) with 0.2 wt% C. Describe the changes in phases and its structure as it is heated under equilibrium conditions to 850 (deg C).
Colette Lake has a surface area of 103 ha and a mean depth of 8 m. The pH of the water is 7.6. The lake receives surface water from a lake upstream, rainfall, and diffuse groundwater input
Please let me know whether we can cover these facilities or not and what is micro-biological process in these. If we can provide cover than what will be the effect on its biological process.
The container is vented to the local atmosphere. What is the absolute pressure at the surface of the mercury and at the bottom of the container. Assume the conditions of the standards atmosphere prevail for pressure. Use sg = 13.54 for the mercury..
Although primary and secondary sedimentation is responsible for the removal of some BOD, you will design a bioreactor which removes 85% of BOD entering the plant using an activated sludge bioreactor. Use the following values: Influent (to bioreactor)..
A hawser is wrapped two full times around a bollard. by exerting an 80 pound force on the free end of the hawser a dockworker can resist a force of 5000 on the other end of the hawser.
For a hydrology question we are given the depth of runoff and the time. We are to make a hyetograph using this information but Im not sure how to get the intensity of the rainfall from this information
For the following waste and river characteristics just upstream from the outfall, find the minimum downstream DO that could be expected
The bottom is a 6 in slab of rough concrete. If the water is flowing at a uniform depth of 6 ft, do you think the gravel will be scoured by the flowing water
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