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A worker slowly moves a 50-kg crate to the left along a loading dock by applying a force P at corner B as shown. Knowing that the crate starts to tip at about the edge E of the loading dock when a= 200mm, determine:
(a)The coefficient of kinetic friction between the crate and the loading dock
(b)The corresponding magnitude P of te force
Slider A moves in the horizontal slot with a constant speed v = 1.90 m/s for a short interval of motion. Determine the angular velocity of bar AB if the displacement xA = 90 mm, and the length L = 440 mm.
The sediment sample is 30 cm long. The porous plates on top and bottom of the sample holding it in place have a vertical hydraulic conductivity of 0.001 cm/s and each have a thickness of 10 cm.
consider a cantilever mass-less beam subjected to a concentrated mass at the tip of the beam.nbspassume length l
Only the inner cylinder is rotating. THe velocity distribution is given by V(r)=1000r-0.4/r [m/s]. If the diameters of the cylinders are 3 cm and 5 cm, respectively
If 100 acres of farmland were developed for urban housing (four houses per acre), what would be the difference in average annual water requirements after the change over
The center post B of the assembly has an original length of 124.7mm, whereas posts A and C have a length of 125mm. If the caps on the top and bottom can be considered rigid
For the vector 100i+150j-300k kN determine its magnitude, the direction, angle alpha, beta, and gamma and the unit vector. magnitude = 350 kN angle alpha is suppose to = 59 degrees
A completely reversible heat engine operates with a source at 1500 R and a sink at 500 R. At what rate must heat be supplied to this engine, in Btu/h, for it to produce 5 hp of power?
The maximum flexural stress on a transverse cross section of a beam2" x 4" with a rectangular cross section must not exceed 8 ksi.Determine the maximum resisting moment Mr that the beamcan support if the neutral axis is
A +2 percent grade on an arterial highway intersects with a -1 percent grade at station (535 + 24.24) at an elevation of 300 ft. if the design speed of the highway is 65 mi/h,
1 determine the design hourly volume for the road below recommend the k factor first.a. for a two lane highway in a
a three-span continuous beam abcd with three equal spans supports a uniform loadnbspwith intensity q. determine all
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