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A hydroelectric power plant has a synchronous generator whose speed must be fixed at 180 r/min. The turbine is Francis type with 10 m runner diameter. When the flow rate at the nozzle of the penstock is 10 m3/s, the generated electricity is 50 MW. If the total efficiency of the generator, turbine, and hydro is 88%, compute the velocity of the water jet.
The single-phase transmission line is operating with the receiving side of the line open-circuited. The sending end voltage is 8 kV at 50 Hz. How much charging current is flowing in the line?
What does "transfer function" of a filter represent What do the Amplitude Ratio (Gain) and Phase Angle represent What are the key differences between a real filter (the RC circuit) and an Ideal Filter (please read LPF Treated as an Ideal Filter)
A 1.12 kg block is attached to a horizontal spring with spring constant 3500 N/m. The block is at rest on a frictionless surface. A 10 g bullet is fired into the block, in the face opposite the spring, and sticks.
Each city has a starting population and annual growth rate. The smaller city has the larger growth rate (required). Show the comparative populations of each city year by year until the smaller city has grown larger than the bigger city.
a). Determine the power this amplifier will deliver to a 4 ohm load, to an 8-ohm load, and to a 1K-ohm load b). What would be the open-circuitvoltage of the amplifier if the signal level were increased
When couplescome in to buy a pair of phones, salesof Apricots and Bananas are equally likely.Moreover, given that the first phone soldis a Banana, the second phone is twice aslikely to be a Banana rather than an Apricot.What is the probability tha..
A speaker can be modeled as an inductor LS (the coil that generates the magnetic field to move the speaker diaphragm) in series with a resistor RS (resistance associated with the coil wire, as well as the energy lost to the acoustic output the spe..
A 460-V, three-phase,60-Hz system supplies power to a 10-kVA, delta-connected resistor load; a 50-kVA, 0.86 power factor induction motor, and a wye-connected synchronous motor that is operating at 0.62 power factor leading
The outer surface temperatures of the brick and insulation are 1260 degreeR and 560 degreeR, respectively , and there is perfect contact at the interface between the two layers. Determine at steady state the instantaneous rate of heat transfer
If you have a 300 ohm transmission line terminated with an antenna that presents a (400 ohm - j 600 ohm) load impedance:
Instructions are then fetched from the following addresses in order: 0, 4, 8, 92, 96, 100, 4, 8, 12, 16. For each fetch, determine whether the cache hits or misses. Assume no lines are replaced during execution of the sequence.
In a DSB-SC amplitude modulation system, the message signal is m(t)=e^-3t*u(t-2) and the carrier signal is cos(2000pi*t). Find and sketch the Fourier transform of the modulated signal.
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