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Let X be the outcome for rolling a die and let Y be the outcome for rolling a second die. X & Y are the number of dots that appear for each die. find the joint probability for the event X less or equal to 3 and Y greater than 3?
The transfer function (TF) of a system is given below. Find its impulse response inn domain. Hint: First multiply the TF by the z-transform of input-or x(z)-or the z-transform of unit impulse. Factor the denominator and then expand.
Consider a product data sheet for a photo-detector that states an optical power level of -32dbm is need at the photo-detector to specify performance requirement. What is the power level nW (nano Watts)
Examining frequency to time domain signals, A spectrum analyzer is connected to an unknown signal. The spectrum analyzer displays the power level of signals in dBm vertically and frequency horizontally. The spectrum of the unknown signal creates t..
What is the attenuation per octave between 1 kHz and 10 kHz? What is the increase in attenuation between 5 kHz and 10 kHz?
The receiver uses a 10.7 MHz IF. For cost, power, weight and size reasons, it is desirable to use a single clock oscillator that will provide the frequency reference for the synthesizer, as well as providing the clock for data.
the operation of an induction machine here used as an asynchronous generator her connected to a 3 phase electric system. a) What does asychronous mean in this context b) How is it possible to improve the operation of this generator on the system
The intensity of solar radiation is 1366.1 W/m2 in space. This light strikes a 10 m2 solar panel of a satellite. Assuming that all the light is absorbed, how much force (momentum per second) is transferred
In the presentation, "IT and Smart Grid" the presenter, Dr. Peter Will, provided several definitions of "smart-grid". Provide your definition of smart-grid the way you understand it. What are some of the benefits of "smart grid" application
(a) If a motor at the end of a transmission line has a reactance of 8 ohms per phase, what is the maximum power which the machine can develop, given that the sender voltage is 4kV and the induced voltage Eo is also 4kV.
Is the high carrier concentration in transparent conductors due to their ideal band structure or to the presence of defects and dopants. If two different materials but with the same work function are brought into contact, does band bending result.
A certain load takes 10kW at 0.5pf lagging when connected to a 230V, 60Hz source. The supply company charges a penalty when the power factor fall below 0.8. What size of capacitor must be used in order to avoid penalty
a solid cylindrical conductor of raduis a and charge Q is coaxial with a cylindrical shell of negligible thickness,radius b,and charge -Q. FIND THE CAPACITANCE OF THIS CYLINDRICAL capacitor if its length is l.
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