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An air-standard Otto cycle has a compression ration of 9. At the beggining of compression, p1=100 kPa and T1= 300K. The heat addition per unit mass of air is 1350kJ/Kg. Determine. a) the net work, in kJ of air. b) the thermal efficiency of the cycle. c) the mean effective pressure, in kPa. d) the maximum temperature in the cycle, in K.
The Per-cent impedance of a single-phase electric load is 2.5. The base power is 100KVA, and the base voltage is 12.47KV. a find the per-unit impedance of the load if 400KVA and 20 KV are selected as base values.
(a) Draw the equivalent circuit. (b) Determine the ohmic value of the impedances. (c) Calculate the source current in amperes and in percent if the generator operating voltage is 3.8 kV (line-to-line) and a reactance of X=125% is connected in seri..
A three-phase, 60Hz, wye-connected synchronous generator has balanced line-to-line voltages of 480V at its terminals. The generator is supplying power to two balanced and delta connected, three-phase loads. the first load is made up of three.
The current through a branch in a linear network is 2 A when the input source is 10 V. If the voltage is reduced to 1 V and the polarity is reversed, the current through the branch is a. - 2 A b. - 0.2 A c. 0.2 A
The ATSC broadcast television system used in the US transmits video signals at an average rate of 18.34 Mbps and employs 8-VSB modulation.
a) Determine C that will lead to a resonant frequency of w0=10^8 rad/s. b) Determine the resistance R that will lead to a resonant Q of 100. c) Determine the resistance R that will lead to a resonant Q of 1. d) For parts b) and c), what is the fra..
Bit 4 of Port B is connected to a switch that normally outputs a zero. Monitor this switch to detect a change from zero to one. Immediately when it becomes one, call a function to toggle Bit 5 of Port B, which is connected to an LED.
design an IIR high-pass filter using bilinear method in a system with sampling frequency of 100 Hz. The lower and higher cutoff frequencies are at 18 Hz and 35 Hz respectively. Pre-warp the cutoff frequencies.
A lossless transmission line with a characteristic impedance of 75 ohms is terminated by a load of 120 ohms. The length of line is 1.25 lamda. If the line is energized by a source of 100 V (rms) with an internal impedance of 50 ohms
Explain what the cumulative probability distribution function indicates in this case. If the rms value is given by 2 sigma, compute the percentage of time that a signal is 12 dB or more below the rms value for a Rayleigh fading signal.
A selective-repeat (SR) data link layer protocol uses 4 sequence bits to number it's frames. The source, C starts from frame 0 and proceeds following the Sr protocol. Let us start analyzing the frame/ACK transmissions when the first outstanding fr..
A zippy little electric car is equipped with a 175hp motor. a) How many kW are required to run the motor if we assume ioo percent efficiency in converting electrical power to mechanical power
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