Engineering, 19.11.2019 06:31 des6487
A. plot the spectrum of a pam wave produced by the modulating signal = cos( assuming the modulation frequency = 0.2 hz, sampling period = 1 and pulse duration t = 0.45 . using an ideal reconstruction filter, plot the spectrum of the filter output. compare this result with the output that would be obtained if there were no aperture effect.
Answers: 1
Another question on Engineering
Engineering, 03.07.2019 14:10
Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.
Answers: 2
Engineering, 04.07.2019 19:20
Air enters a horizontal, constant-diameter heating duct operating at steady state at 290 k, 1 bar, with a volumetric flow rate of 0.25 m°/s, and exits at 325 k, 0.95 bar. the flow area is 0.04 m2. assuming the ideal gas model with k = 1.4 for the air, determine (a) the velocity at the inlet and exit, each in m/s, and (c) the rate of heat transfer, in kw flow rate, in kg/s, (b) the mass kg 0.3
Answers: 2
Engineering, 04.07.2019 19:20
In the winter, in order to keep the classroom steadily at 68 f before 10 pm, heating with an average rate of 42,000 btu/hr is provided. assume the outdoor temperature maintains at 32°f, determine the electrical power (kw) required to (a) operate a reversible heat pump (b) operate a real heat pump with a cop (7) of 4.5 and (c) operate an electrical-resistance heater.
Answers: 3
Engineering, 06.07.2019 04:10
Amixture of gases consists of 0.4 kg of oxygen, 0.7 kg of carbon dioxide, and 0.2 kg of helium this mixture is maintained at 100 kpa and 27°c. determine: (a) the apparent molecular weight of this mixture the volume it occupies (b) the partial volume of the oxygen, and (c) (d) the partial pressure of the helium
Answers: 1
You know the right answer?
A. plot the spectrum of a pam wave produced by the modulating signal = cos( assuming the modulatio...
Questions
Business, 09.02.2021 17:20
Mathematics, 09.02.2021 17:20
Mathematics, 09.02.2021 17:20
Mathematics, 09.02.2021 17:20
Arts, 09.02.2021 17:20
English, 09.02.2021 17:20
