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A closed box with horizontal base 6m x 6m and height of 2m is half-filled with water and is accelerated Ax=4.9 m/sec^2 and Ay=-2.4 m/sec. find the pressure at the forward and rear corners along the bottom.
The driver of a car traveling up a 2% grade at an initial speed Vo applied the brakes abruptly and the vehicles slid to a complete stop at an average deceleration of 8 ft/s^2. Was the pavement wet or dry
Calculate the approximate alkalinity (in mg/L as CaCO3) of a water containing 120 mg/L of bicarbonate ion and 15 mg/L of carbonate ion.
A larger-diameter pipeline will cost $2.1 million installed, but its operating cost will be only $8000 per month. Which pipe size is more economical at an interest rate of 1% per month on the basis of an annual worth analysis
Two forces are applied to the vertical post. Determine the force and couple at O equivalent to the two forces.
Assume the 20 percent of the annual precipitation reaches the watershed outlet as stream flow. Determine the mean stream flow rate in ac-ft/yr, sfd/yr, and square meter/second
In magnetic tape recording, the tape is subjected to tension while it is guided along its path. Tension in the tape causes elastic deformation that results in slight changes in length of the domains on which information is stored.
The 60mm diameter shaft ABC is supported by two journal bearings, while the 80mm diameter shaft EH is fixed at E and supported by a journal bearing at H. If T1= 2 kN*m and T2= 4 kN*m
THE WATER TABLE OF A SATURATED , UNCONFINED AQUIFER COINCIDES WITH THE LAND SURFACE. THE AQUIFER IS 52 FT THICK AND THE MATERIAL HAS A UNIT WET WEIGHT OF 135 LB/FT^3.
A lake has a water level which is used to determine if watering restrictions need to be implemented for the neighboring city. Water levels are measured on a weekly basis, and restrictions are placed if the lake level drops below 1060 ft.
During a test flight in which a 9000-kg helicopter starts from rest at t = 0, the acceleration of its center of mass from t =0 to t =10 s is a=(0.6t)i+ (1.8 0.36t)j m/s2.
A structural tension member of 10 ft. long with a square cross-section is subjected to a load of 120,000 lb. There is a choice between an aluminum alloy and structural steel, with the following information given for each.
The 30-Mg freight car A and 20-Mg freight car are moving towards each other with the velocities of VA= 20km/h and VB=10 km/h. A spring mounted on A has k=3 MN/m Determine the maximum compression of the spring mounted on car A.
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