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Determine whether the following signals are periodic. If they are, find the smallest periods (fundamental periods).
a) f(x,y) = sin (2 pi x) cos(4 pi y)
b) Discrete signal: f(m,n) = sin ( pi * m / 5) cos(pi * n / 5)
Using the message signal m(t) = 1/(1+t^2) , determine and sketch the modulated signals for the following methods of modulation: (c) SSB modulation with only the upper sideband transmitted. (d) SSB modulation with only the lower sideband transmitted.
2. Compute the symbol error probability for both constellations in terms of the Gaussian error integral Q(x). 3. Compute the bit error probability for both constellations in terms of the Gaussian error integral.
the z-axis carries a 10mA current in the +z direction. A second line of current parallel to the first is located at x= 0, y=3cm carrying a 10 mA current in the -z direction. A rod exists in the y-z-plave from y= 1cm to y= 2 cm. velocity u = 2m/s z..
A 40-year old person wants to accumulate $500,000.00 by age 65. How much will she need to save each month, starting one month from now, if the interest rate is 6% per year
Discuss different types of addressing modes of HCS12. What is a relative addressing mode What is the difference between a direct and an extended addressing mode Discuss how Registers X and Y are used in index addressing mode.
The secondary's of a step-down, three-phase transformer bank are delta connected and supply a three-phase 240v moter that draws 12A through each line. What is the current in each transformer winding If the turn ratio of the transformers
An FM transmitter delivers to a 75 ohm antenna a signal voltage of V (t)= 1000 sin (10^9t+4 sin 10^4t), determine: (a) carrier frequency; (b) intelligence frequency; (c)modulation index; and (d)total power in FM signal
A sheet of plywood 1.39 cm thick is used to make a cabinet door 55.5 cm wide by 69.5 cm tall, with hinges mounted on the vertical edge. A small 181-g handle is mounted 45 cm from the lower hinge at the same height as that hinge.
Problem on complex power, An electric load operates at 240 volts. The load absorbs an average power of 8Kw at a lagging power factor of 0.8.
A series-parallel circuit contains both series and parallel connections in different arrangements. Do you find it useful to isolate the parallel sections and calculate their resistance first
A cyclotron used to accelerate alpha [articles (m=6.55 x 10^-27kg, q=3.2x10^19C) has a radius pf .50, and a magnetic field of 1.8T (a)what is the period of revolution of the alpha particles (b)what is their kinetic energy
Calculate the electrostatic energy that is stored in the structure if the intermediate space is filled with a dielectric whose relative dielectric constant is 10 and a voltage is applied between the conductors creating an electric field.
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