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To study the disposal of pollutants emerging from a power plant, the prevailing wind direction was measured for a large number of days. The direction is measured on a scale of 0º to 360°, but by dividing each daily direction by 360, the measurements can be rescaled to the interval (0,1). These rescaled measurements X are found to follow a beta distribution with a = 4 and β = 2. Find E(X). To what angle does this mean correspond?
An industrial isolation transformer has a power rating of 1.0 kVA at 240 VAC. Identify the nominal turns ratio (nsec/ npri). Calculate the rated current of the secondary winding.
a)How many coulombs of charge are stored in the battery when fully charged?
Describe three methods of comparing techniques to improve the first swing electromechanical transient behaviour of such a generator.
The center director promises that the number of breakdowns will rarely exceed 8 in a one week period. Is the director safe in making this claim? Why or why not?
There needs to be certain measures put in place as a technology or application is being developed in order to protect the intellectual property to maximize the lifecycle of a product and return on investment. Describe in detail at least three methods..
BJT Amplifiers Sketch an emitter-follower circuit with R1 = R2 = 50kohm ; RE = 2kohm. The collector of the npn transistor is connected to VCC = 5V and the input signal has an internal resistance, RS = 0.5kohm
For what range of values of a is the system stable?
Suppose L=25mH, but the resistance value,R, is not specified. Find a condition on R so that the circuit is strictly BIBO unstable (i.e., not even marginally stable). Hint: you might not be able to purchase such a resistor at Radio Shack
Suppose that a 5 Mbps link is being shared by a number of users. Each user alternates between period of activity during which the user transmits at rate 1 Mbps and periods of silence, when the user does not transmit.
An AC motor with impedance Z = 4.2 + j3.6 Ω is supplied by a 220 V, 60 Hz source. Determine the reactive power delivered to the load.
Implement the following boolean functions using a 3x8 decoder constructed with NAND gates and three external NAND or three external AND gates. F1(A,B,C) = m(2,4,7) F2(A,B,C) = m(0,3) F3(A,B,C) = m(0,2,3,4,7)
In light of the winner's curse, must winning bidders in auctions necessarily "lose" in the sense of paying more than the item is worth? What steps can bidders take to prosper in auctions?
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