Engineering, 23.01.2020 19:31, thekid3176
X(t) denotes a zero-mean wss gaussian random process with autocorrelation function rx(t)-4sinc2(10%) 1. what is the power in this process? 2. determine the power spectral density, sx(f), for this process. 3. what is the bandwidth of this process? 4. assuming that this process passes through an ideal lowpass filter with a band- width of 5 khz and the output is denoted by y(t), determine sy(f), the power spectral density of y(t), and the total power in the output process. 5. determine the pdf of random variables x (0), x (10-4), and x (1.5 x 10-4). 6. show that random variables x (0) and x(10-4) are independent but x(0) and x(1.5 x 10-4) are dependent.
Answers: 3
Engineering, 03.07.2019 15:10, brooklyn674
Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?
Answers: 3
Engineering, 04.07.2019 18:10, oshawn108
Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg. k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m. k
Answers: 2
Engineering, 04.07.2019 18:10, QueenLife4869
Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.
Answers: 3
X(t) denotes a zero-mean wss gaussian random process with autocorrelation function rx(t)-4sinc2(10%)...
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