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A rectangular concrete beam of width b = 24 inches is limited by architectual considerations to a maximum total depth of h = 16 inches. it must carry a total factored load moment of Mu = 400 ft-kips. Design the flexural reinforcement for this member, using compression steel if necessary. Allow 3 inches to center of the bars from the compression or tension face of the beam. Materal strengths are Fy = 60,000 psi and F'c = 4,00 psi. Select Reinforcement to provide the needed areas , and show a sketch of yuor final design, including provision for no.4 stirrups.
If a tractor with 23-hp, a max speed of 3.6 mph in 1st gear and an effieiciency of 92% is operated operated down a 4% slope and the rolling resistance is 80 lb/ton, what is the maximum external pull in each of the 4 gears.
An inductive proximity switch is a device used in valve feedback, describe the construction, operating principle and beneficial features of the switch
Estimate the elastic, shrinkage, and total axial deformation of a concrete column after 2 years of permanent load application. Assume the full structural load was applied at 28 days after placing concrete.
Three cylinders from the same mix were tested for strenght. Cylinders A and B were cast in 4x8 molds while cylinder C was cast in a 6x12 mold. The total loads were as follows; cylinder A= 65,200 lbs., cylinder B= 68,550 lbs., cylinder C= 151,190 l..
A fisherperson, pulling on the anchor cord, causes a force on the man of F=(40i+20j-50k)N. If the cord is 30m long,determine the Cartesian coordinates of the anchor at A. Assume that cord OA is a straight line.
A hydraulic jump occurs at the entrance of this channel, with a downstream depth equal to the uniform flow depth. What is the upstream depth, y1, of the hydraulic jump?
Water flows through a horizotal 45 deg reducing bend with a 36 inch. diameter upstream and a 24 inch diameter downstream, at the rate of 20 cfs under a pressure of 15 psi at the upstream end of the bend. Neglecting head loss in the bend, calculate..
If a sample for BOD needs to be diluted by a factor of 0.02 , calculate the volume of sample that will be used in the BOD bottle
A rectangular blade weighing 0.02 lbf is kept in the surface of water (sigma=0.073 N/m) solely by surface tension forces. What is the minimum perimeter of that the blade must have so that this is possible
What is the chemical name of the first hazardous air pollutant under Title III regarding the Clean Air Act
A gas is compressed at a constant pressure of 0.800 atm from 9.00L tp 2.00L. in the process, 400J of energy leave the gas by heat. (a) What is the work done on the gas? (b) What is the change in it internal energy?
Determine the gravitational force acting between two spheres that are touching each other. The mass of each sphere is 400 kg and the radius is 300mm.
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