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An induction motor takes 350 kW at 0.8 power factor lagging while driving a load. When an overexcited synchronous motor taking 150 kW is connected in parallel with the induction motor, the overall power factor is improved to 0.95 lagging. Determine the kVA rating of the synchronous motor.
There are four stable isotopes of iron with mass numbers 54, 56, 57, and 58. There are also two radioactive isotopes: iron-53 and iron- 59. Predict modes of decay for these two isotopes. (See Table 18.2.).
If a double-effect evaporator system is used with forward feed and U = 450 Btu/h-ft2-°F and 112 = 350 Btu/h-ft2-°F, and a vapor- space pressure of 4 in. Hg in the second effect determine the heat- transfer area of each effect, assuming equal areas..
The unit cell for Cr2O3 has hexagonal symmetry with lattice parameters a = 0.4961 nm and c = 1.360 nm. If the density of this material is 5.22 g/cm3, calculate its atomic packing factor.
The stack gas emerges at 760 mm Hg. Calculate the percentage conversion of hexane, the percentage excess air fed to the burner, and the dew point temperature of the stack gas.
Determine the current needed in the coil to produce a flux density of 1 T in the center limb, if the excitation coil has 500 turns.
The fictitious compound, pandemonium fluoride (PnF2) has a Ksp value in water of 3.091×10-9M3 at room temperature. Calculate the solubility of PnF2 in water. Express your answer in units of molarity.
A small atomic bomb releases energy equivalent to the detonation of 20,000 tons of TNT; a ton of TNT releases 4x10^9 J of energy when exploded. Using 2x10^13 J/mol as the energy released by fission of 235U, approximately what mass of 235U undergoe..
The azeotrope contains 61mole % CS2. Estimate the work of separation if the feed solution is liquid at 39.250C and the products are withdrawn at the same temperature. At 39.250C, 1 2 604 ; 400 . S S P mmHg P mmHg?
A plywood-manufacturing concern is using a binder that requires a temeprature of 180°F in order to obtain adequate holding strength.
Describe how you would find the critical temperature for thermal damage. Do you expect that to be lower or higher than a constant temperature case of the same exposure duration?
What other disease also increases the fitness of individuals with the mutations against the same environmental condition
A steam press at 650Kpa + dryness fraction of 0.9% flows along a pipe at a rate of 3.5Kg per second. Steam mixes with additional steam that has been throttled from a pressure of 2000Kpa to a pressure of 800Kpa which enters from a branch pipe. If t..
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