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A platform is being designed to support some water pollution testing equipment. As shown in Fig. 5.31, its base is 36.00 in wide, 48.00 in long, and 12.00 in high. The entire system weighs 130 lb, and its center of gravity is 34.0 in above the top surface of the platform. Is the proposed system stable when floating in seawater?
It is known that a long log floats with its axis horizontal. A very short log, however, floats with its axis vertical. Determine the maximum length of a cylindrical walnut log 30 cm in diameter that will cause it to float with its axis vertical.
a cattle watering fountain has a free water surface with a size equal 0.6m x 0.3m with the longer side being parallel
Evaluate the coef?cient of thermal expansion, α, for rubber under an extension of 100% at 20?C. A rubber band was stretched from 6 to 12 ins. While being held under a constant stress, it was heated from 20?C to 40?C.
a swimming pool is heated by a gas-fired heater that supplies 200000 btuhr to the water. the pool is rectangular 15 ft
It takes 15 revolutions of the screws for the full range motion necessary to unload/load a work piece. The DC motor constant, KM, is 0.6 rev/V/s and there is a 20 Volt power supply. Assuming a constant proportional control gain, KP of 4 volts/rev, ho..
a differential pressure is measured with a u-tube monometer having water as the manometer fluid. the results of the
a residential development is proposed in the eastern part of new territories hong kong. the development consists of 5
A closed system undergoes a process in which work is done on the system and the heat transfer Q occurs only at temperature Tb. For each case, determine whether the entropy change of the system is positive, negative, zero, or indeterminate.
Compare the efficiencies and specific steam consumption obtained from Problems 8.1, 8.2, 8.3, and 8.4. Compare also the wetness of the steam leaving the turbines in each
An ideal diesel cycle has a compression ratio of 16.8 and a cut off ratio of 1.63. Determine the maximum air temperature and the rate of heat addition to this cycle when it produces 197 hp of power, the cycle is repeated 1,250 times per minute, and t..
a transformer consisting of two coils wrapped around an iron core is connected to a generator and a resistor as shown
One 110kg foot ball lineman is running in the direction of x-ax is at 2.75 mis while another 125 kg lineman is running directly toward him at 2.60 mis. What are the magnitude and direction of the net momentum of these two athletes and their total ..
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