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Repeat Problem 13.1.8 if the generator operates at 50 Hz.
Problem 13.1.8
A synchronous generator has a rotor with six poles and operates at 60 Hz.
(a) Determine the speed of prime mover of the generator.
(b) Repeat part (a) if the generator has 12 poles.
(c) Repeat part (a) if the generator has 2 poles.
Sphere A is moving at a speed Vo=16 ft/s when it strikes sphere B which is at rest and the impact causes sphere B to break into two pieces, each of mass m/2 Knowing that 0.7s after the collision one piece reaches point C and 0.9s after the collisi..
A 60-Hz, 440-V, three-phase system feeds two balanced wye-connected loads in parallel. One load has a per-phase impedance of 8 + j3 Ω and the other 4 - j1 Ω.
What diameters of inlet and outlet pipes would be required for a flow of 2270kg per hour with a velocity of 15m/s both before and after the reducing valve?
Calculate packing height required for the desired separation.
Consider a diatomic gas, N2, at 298 K. This gas is compressed reversibly and adiabatically from 15 dm3 to 5.0 dm3. Assume that the heat capacity of this gas is CV=5R/2, and that it behaves ideally. Calculate the final temperature, T2, of the gas.
A feed to a column has the composition given in the table below, and is at a pressure of 14 bar and a temperature of 60 °C. Calculate the flow and composition of the liquid and vapor phases. Equilibrium data can be taken from De Priester charts (D..
Give the relation for strain energy in a rubber as a function of the extension ratios, and from this develop equations developing the extension ratio and the engineering stress for uni-axial extention
Statistics on the global Nanofiltration market outlook,ie, market trends, size and application. Market drivers and industry structure (market analysis) and likely demand in promising segment such as the water industry or the pharmaceutical ind..
The total brush-contact drop is 2 V, and the core and rotational losses are 380 W. Assume that stray load loss is 1% of output. Compute the efficiency of the motor.
determine the amount of Federal income tax due for the year on a cash basis and also on an accrual basis.
What were the materials used in the implant? What were the advantages of the materials used and what was the surface texture of these implants? How did this contribute to the biocompatibility of the implant?
A 2014 Toyota Prius has a drag coefficient of Cd at road speed, using A m2 as the reference area. Determine the horsepower required to overcome drag at a velocity of v m/s. Calculate the answer if Cd= 0.26; A= 2.33m2 and v=30 m/s. Compare this fig..
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