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A circular cylindrical buoy floats in sea water (relative density 1.026) with its axis vertical. The buoy is 3m in diameter, 3m high and has a mass of 3000kg. The centre of gravity of the buoy is on its central axis 1m from the bottom face. If a mass of 500kg is placed centrally on the top face of the buoy, find the maximum height of its centre of gravity above the bottom of the buoy so that the buoy may remain in stable equilibrium.
The herbicide 2,4,D, is applied to a golf course at a rate of 1.2 kg/ha. The organic matter content of the soil is 1%, bulk density is 1.3 g/cm3, and water content is 0.3. a) What fraction of the herbicide is adsorbed, and what fraction is dissolve..
A Silane contains 90.31 % silicon and 9.69 % hydrogen by mass. The compound has a molar mass of 62 g/mol. Determine the compound's empirical and molecular formula.
The two shafts in a speed-reducer unit are subjected to couples of magnitude M1 = 18 N · m and M2 = 7.5 N · m, respectively.
A horizontal curve was designed for a four-lane highway for adequate SSD. Lane widths are 12 feet, and the superelevation is 0.06 and was set assuming maximum fx.
Draw the FBD and the shear and bending moment diagrams. Label all minimums, maximums and zero crossing points as well as the slopes as constant, linear or parabolic.
What additional data and information should he gather,and how should he go about gathering the data information ?
a) The maximum flow rate that can be achieved without cavitation occurring in the piping system. b) The maximum elevation of the highest point of the piping system to avoid cavitation.
At the end of 15 years, the first motor will have a salvage value of $50 and the second motor will have a salvage value of $100. consider the MARR to be 8%. (note : 1HP=0.7457 kw). Determine which motor should be installed based on the PW criterio..
A big municipal utility district is considering two large-scale conduits. The first includes construction of a steel pipeline at a cost of $200 million.
An approach to a pretimed signal with a 60 sec cycle has nine vehicles in the queue at the beginning of the effective green. Four of the nine vehicles in the queue are left over from the previous cycle.
The volume flow rate of streams into the pipe is given by QA = 0.02t m 3 /s and that of stream B by QB = 0.008t 2 m 3 /s, where t is in seconds. The exit area of the pipe is 0.01m 2 . Find velocity and acceleration of the flow at exit at t = 1s.
The posItIon of a particle along a straight line is given by s = (t 3 - 9t 2 + 1St) ft, where t is in seconds. Determine its maximum acceleration and maximum velocity during the time interval 0 :5: t :5: 10 s.
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