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A natural gas power plant has a condenser that extracts 28,000 Btu/kg of natural gas. Compute the mechanical energy of the turbine and the overall system efficiency.
1. If x(t) is periodic with period 2.1 seconds and y(t) is periodic with period 2.4 seconds, is x(t)+y(t) periodic Why or why not 2. If x[n] is periodic with period 15 seconds and y[n] is periodic with period 10 seconds, is x[n]+y[n] periodic
A six pole, 40 kW, 400 V d.c. motor draws 110 A from the supply. The shunt field resistance is 200 Ohm and the armature resistance is 0.5 Ohm. The armature is wave wound with 600 conductors operates at a speed of 1200 rev/min when supplying full l..
question 1. surface integral for jet engine. the air-gas exhaust velocity from a jet engine varies linearly from a
What are the Advantages of Parallel Circuits connection over Serie Circuit Connection ? Why Parallel Connection is Mostly Preferred over Series Connection?
Various radio stations in a given geographical region are assigned different carrier frequencies so that the frequency ranges of the signals do not overlap. Suppose that a certain AM radio transmitter has a carrier frequency of 980 kHz.
a DC series machine ( 9.25 kW, 185 V, 1500 RPM) has Ra+Rsr = .3 ohms. The data for the magnetization curve are: Ia 0 10 20 30 40 50 60 Ea 10 50 106 156 184 200 208 Determine the terminal voltage at Ia = 20 amps, 40 amps and 60 amps.
An open-circuited 50 Ω microstrip transmission line is used ina microwave amplifier circuit to provide a capacitance of 3.2 pF at2.3 GHz. (a) Find the appropriate electrical length of the line
The manufacture of 6V -dry-cell flashlight battery says that the batter will deliver 15mA for 60 continuous hours. During that time the voltage will drop from 6V to 4V. Assume the drop in voltage is linear with time,
Devise a circuit for a simple burglar alarm that activates a siren if either a motion sensor detects motion or a sensor on a window detects that the window is open.
Calculate the annual return on investment (ROI) in for the process improvement in Example 16.5 if the factory operates 300 days per year, but sells only 500 widgets per day.
Does the shot noise in the signal current allow the SNR specification to be met? What is the system margin, ignoring any other noise sources?
Redraw Figure 3.7 to illustrate the generation of upper-sideband SSB. Give the equation defining the upper side band filter. Complete the analysis by deriving theexpression for the output of an upper-sideband SSB modulator.
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