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Explore some of the long-term projections for world energy usage over the next 25 years. Develop a list of factors that could increase the demand for energy resources. Develop another list that presents those variables which could reduce energy consumption during this period.
design a negative edge-triggered d flip-flop that uses three sr latches constructed with cross-coupled nor gates.
Find the approximate water flow in the pipe.
A coil having 1000 turns is wrapped on ferromagnetic core constructed of sheet steel. The core has a cross-sectional area of 0.0009 m^2 and an average flux path of 30.0 cm. The core also has a length of 2 mm. The flux density in the core and airga..
Power factor improvement, An industrial user has a number of machine tools which are driven by three phase induction motors. during a particular shift, the power factor of the combined load can vary between 0.65(100 KVA load) and 0.81 (20 KVA) loa..
How much we need to pay for the electricity cost in 61 days when a water-desalination machine runs normally from 8AM to 4PM every day. (It draws 25A in its warming-up time (15 minutes) and draws, on average, 7A in its normal working time at 240V).
The output becomes 1 and remains 1 thereafter when at leasttwo 0s and at least two 1s have occured as inputs, regardless ofthe order of occurrence. Assuming this is to be implemented as aMoore machine, draw a state diagram for the machine.
A full-wave bridge rectifier circuit with a 1-kohms load operates from a 120-V (rms) 60-Hz household supply through a 10-to-1 step-down transformer having a single secondary winding
If the voltage across the current through the series combination ofa resistance and an unknown energy-storage element are v =200cos(10^(2)t + 60°) V and i = 5.547cos(10^(2)t + 93.69°)mA,
A circuit contains two devices that are connected in parallel. If the resistances of one of these devices is 12ohms and the resistance
Experience has shown that about 6 out of 100 cultures are randomly spoiled by the bacteria. If the research requires 3 simultaneously derived unspoiled data points for success, find the probability for any given set of 12 cultures (3 data points o..
Consider a message signal m(t) containing frequency components at 100, 200, and 400 Hz. This signal is applied to a SSB modulator together with a carrier at 100 kHz, with only the upper sideband retained.
A load is consisting of induction motors is drawing 80 kW from a 220-V, 60-Hz power line at a power factor of 0.72 lagging. Find the capacitance of a capacitor required to raise the pf to 0.92.
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