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Contain at least one two-force member. Solve by utilizing the two-force principle, where appropriate. If the weight of a body is not specifically stated, it can be neglected. Calculate all forces acting on member CDB.
A completely reversible air conditioner provides 21,000Btu/h of cooling for a space maintained at 81degF while rejecting heat to the environmental air at 91degF.
During field operations for traverse ABCDEF, some measurements for courses CD and DE were omit-ted due to obstacles. Calculate the missing length and azimuth.
A concrete mix with a 3-inch slump, w/c ratio of .50, and sand with a finesse modulus of 2.4 contains 1700 lb/yd^3 of coarse aggregate per cubic yard. To adjust the mix so as to increase the compressive strenght
Explain the process for establishing a centerline for a roadway for an existing road. Include a description of the types of property markers used as well as any problems a surveyor may
Use the strain-transformation equations to determine the equivalent in-plane strains on an element oriented at an angle of θ = 45° clockwise from the original position. Sketch the deformed element within the x - y plane due to these strains.
A horizontal curve is being designed around a pond with a tangent length of 1200 ft and central angle of 0.5211 radians. If the PI is at station 145 + 00, determine the station of PT.
One mole of an ideal monoatomic gas initially at 300 K is expanded from an initial pressure of 10 atm to a final pressure of 1 atm. The molar heat capacity for constant volume for the gas is Cv = 3/2 R .
A three point bending test is performed on a glss specimen having a rectangular cross section of hight d =6 mm and width b = 12 mm the distance between support points is 45mm.
A 500 lb flywheel is shown. A 100 lb block is held by a light cable wrapped around the hub of the flywheel the radius of which is 2 ft. If the system is released from rest and the weight has a velocity of 11 ft/sec after 5 s
the reactions at A and B. Assume that the hinge at B does not exert any axial thrust.
Determine the internal pressure that would cause yielding of the cylindrical thin walled pressure vessel. The ends are capped. The pressure vessel is made ofA36 steel.
The pollutant is destroyed in the lake with a first-order rate constant of 0.2Wday. The flow rate out of the lake is 5.0 m3 /s.
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