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1.The bus B has a weight of 15,000 lb and is traveling to the right at 5ft/s. Meanwhile a 3,000 lb car A is traveling at 4ft/s to the left. If the vehicles crash head-on and become entagled, determine their common velocity just after the collision. Assume that the brakes are not applied during collision.
2.A steel column has a total unbraced height of 14 ft and carries an axial LRFD load of 950 kips. The column ends are fixed. Select an economical HSS 14x14 for this column.
A plane truss has joint loads P, 2P, and 3P at joints D, C and B, respectively where load variable P=23kN. All members have two end plates which are pin-connected to gusset plates.
Two shafts are made of the same material and are of equal lengths.one of them is solid and another one is hollow. the ratio of inside and outside diameters for hollow shaft is 0.65.
an electrical-generation utility sometimes pump liquid water into an elevated reservoir during periods of low electrical consumption. this water is used to generate electricity during periods when the demand for electricity exceeds the utilities a..
Vision Technologies Inc., is a small company that uses ultra-wideband technology to develop devices that can detect objects (including people) inside of buildings, behind walls, or below ground.
A lead-zinc mine is to be developed by a room-and-pillar layout. The mine is located at a depth of 500ft, the overlying rock has an average specific gravity of 2.56, and the pillar rock wast tested and found to have a
two immiscible fluids are in contact. fluid i is denser and is also well mixed. the concentration of species a is cao
A fully enclosed cylindrical fuel tank with a diameter of 6.00 meters and a height of 8.00 meters has a manufacturing tolerance of +/- 0.04 meteres for each of these dimensions.
By integration, determine the moment ofinertia about a horizontal axis at the channel bottom. Using the parallel axis theorem, determine the moment of inertia about ahorizontal axis through the centroid.
An airplane with a Clark Y airfoil cross-section weighs 3500 lbs. The chord length is 6ft and the wingspan is 36 ft. Determine the: a) Minimum speed and power to take off
Conduct a powder factor design for the following conditions: -Rock is iron ore; density is 5370 lb/cubic yards -Rock swells 60% from in situ when broken -Bench height is 45ft -Drill hole diameter is 12.25 inches
How long will it take for the water to flow out of the 3 mdiameter tank with an initial height of 2.75 m. Note that theorifice has a diameter of 3cm
A rigid tank whose volume is 10L is initially evacuated. A pinhole develops in the wall, and air from the surroundings at 1 bar, 25 degrees Celsius enters until the pressure in the tank becomes 1 bar.
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