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The Tupperware hydroelectric plant on the Blackstone River has four 36-in-diameter turbines, each providing 447 kW at 200 r/min and 205 ft3 /s for a head of 30 ft. What type of turbines are these? How does their performance compare with Fig. 11.22?
An insulated system contains two solid blocks in contact with each other; one hot and the other cold. After heat transfer over some time, thermal equilibrium is established in the container.
Assuming that 50% of the automobile accidents are due to a speed violation. a) What is the probability that among 10 automobile accidents at least 6 will be due mainly to a speed violation?
A car has a 10-ft wheelbase (L). the center of gravity is 18 inches about the ground and 5 ft behind the front axle. The weight of the car is 2500 lb. mechanical efficiency if the drivetrain is 85%. and the wheel radius is 15 inches
Is it possible to have a copper-silver alloy of composition 50 wt% Ag-50 wt% Cu that at equilibrium, consists of α and β phases having mass fractions Wα = 0.60 and Wβ=0.40? If so what will be the approximate temperature of the alloy? If such an a..
The pedestal supports a load P at its center. If the material has a mass density p, determine the radial dimension r as a function of z so that the average normal stress in the pedestal remains constant. The cross section is circular.
If you hace 80' of flexible hose that is 1.75" ID and a pump that is a 4" and moves fluid at 100gpm, how many gpm would the fluid conimg into the 1.75" flexible hose?
A microwave oven has a rotating plate for uniform cooking. The plate takes 8 seconds to complete one revolution and is driven by three rollers.
Two forces are applied as shown to hook support. Knowing that the magnitude of P is 35 N, determine by trigonometry (a) the required angle a if the resultant R of the two forces applied to the support is to be horizontal, (b) the corresponding magnit..
Given that uniform flow is subcrital and there is a weir in a rectangular channel, how do you determine what the weir height should be to force the flow to be critical. Draw this transition on a specific energy curve.
Coal has about 5% sulfur. How many pounds of sulphur would be emitted from coal-fired power plants in the united states in 3 years? (each year. U.S electricity production in about 0.28 x 1012 watts, and coal has an energy content of about 30 x 106 J/..
Let a=3.2 m, b=3.4 m, and P= 11 kN. Type the unit, kNm (Note units; do not insert a period or hyphen between N and m), after typing your numerical answer. Determine the change in moment from a point just to the right of C to a point just to the lef..
Compare these two works or Art: Bodhisattva Padmapani - vs - Basawan and Chatar Muni, Akbar and the Elephant Hawai.
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