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Visit a construction site where light gauge steel studs are being installed. Grasp an installed stud that has not yet EXERCISES been sheathed at chest height and twist it clockwise and counterclockwise. How resistant is the stud to twisting? How is this resistance increased as the building is completed?
Measurements indicate that to cause this flow the force acting on the contents of the control volume is 40i lb. Determine the net rate of flow of linear momentum through the control surface.
If the bar is released from rest in the vertical position (θ = 0) derive an expression for the magnitude of the force exerted by the bearing at O on the frame as a function of θ.
Assume the lubricating fluid is changed to oil with a dynamic viscosity of 1.4X10E-3 lbf-s/ft^2. Now what air pressure, in psig, is required to overcome shear force ? Use the same lift rate of 0.1 ft/sec.
Describe three different ways to generate random numbers and explain for each of the four properties (from (a0) which is “yes” and which is “no”.
The column is braced. The column is required to carry N*=0.75phiNuo kN. What is the value of M2* that could be carried by column considering the slenderness effect. M1*= 0.8M2* Nuo=1000kN r=120mm
How many short tons of coal are required by this plant per year, assuming it operates continuously? If 10% of the coal mass remains as residual ash, how many tons will develop in the ash pile over 25 years?
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.
Calculate the mass of the green house gas and ozone depleting substance CFC-11 (chemical Formula = CCl3F) in the atmosphere. Use units of GtC (giga tonnes carbon). Production of this substance is now banned and mixing ratios are slowly decreasing wit..
World population 10,000 years ago has been estimated at about 5 million. what exponential rate of growth would have resulaed in the population in 1850 , which is estimated at 1 billion ? had that rate continued , would the population have been in the..
commercial management in civil engineering 1-critically analyse the use of project related commercial risk registers
How do you find the force ratio equation to determine the maximum total load that can be applied to a truss?
Design a concrete column of 14 ft high to support a dead load of 80 kips and a live load of 200 kips. f'c= 6,000 psi fy= 60,000 psi
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