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1)the equation M (d^2 X(t)/dt^2)+ D dx(t)/dt+ k x(t)=f(t)a)Find X(s)/F(s).b)show pole zero-plotc)let f(t)=d(t). Find the initial value of x(t) using the initial value theorem. Find the final value of x(t) using the final value theorem.d) Let f(t)=u(t). Find the initial value of x(t) using the initial value theorem. Find the final value of x(t) using the final value theorem.
2)Let f(t)= (t-1)[u(t-1)-u(t-2.5)] where t is in seconds. Suppose f(t) is sampled every second starting at t=0. Ts=1 sec.a) Find F(z).b) Find the Fourier transform of the sampled signal. Sketch the magnitude of F(jw) vs. w.
3) there is current source i(t) and a L,R and C all in parallel with each other, vo is the voltage across C.a) Find V0(s)/I(s)b) Show the pole zero-plot.c) Let V(t)=d(t). Find the initial value of v0(t) using the initial value theorem. Find the final value of vo(t) using the final value theorem.d) Let i(t)=u(t). Find the initial value of vo(t) using the initial value theorem. Find the final value of vo(t) using the final value theorem.
consider two groups are students, where the first group has 7 women and 3 men and the second group has 5 women and 5 men. Agroup is selected randomly and then students in the selected group are randomly arranged. Suppose the probability of choosin..
consider the following two first-order transfer functions H1 (z) = z + b/z + a , a = 0.3, b = - 0.4 H2(z) = bz + 1/z + a , a = 0.3, b = - 0.4 (a) draw the pole-zero plot for both transfer function H1(z) and H2(z)
A constellation diagram has two points located at (3,0) and (-3,0) on the I(in-phase)-Q(quadrature phase) plane. Find the value of peak amplitude and the type of modulation this diagram represents.
Three 150 kVA, 480V/4000V,60 Hz single-phase transformers are to be installed on a 4000V, 3-phase line. The exciting current has a value of 0.02 pu. Calculate the line current when the transformers are operating at no-load.
A 230V shunt motor having an armature resistance of 0.05 W and a field resistance of 75 W draws a line current of 7 A while running light at 1120 rev/min. The line current at a given load is 46 A.
The total charge accumulated by a certain device is given by as a function of timeby q=18t2-2t4 ( in SI units). What is the max charge in the interval 0
A president, secretary, and treasurer are to be chosen from a group of 10 senior members of the IEEE student chapter at the Citadel. Assume that each member cannot serve more than one position.
Conducting plates at z=5m and z=15m are held at potentials -10V and 10V, respectively. If the region between the plates is a homogeneous dielectric with ε = 2ε0, solving the Laplace equation to find: (1) the potential distribution V(z) between two ..
Assume two cables have wire strands that are the same diameter and made of the same material. If one cable has 7 strands and another has 19 strands, which will have more resistance over a mile
Consider a regenerative Rankine cycle with a 600_C and 4-MPa throttle, a 5-kPa condenser, and an open feedwater heater at 500 kPa. Turbine efficiencies are 85%. Neglect pump work. (a) Draw labeled, coordinated T-s and flow diagrams.
A three-phase transmission line having a reactance of 120 ohms per phase is connected to a wye-connected load whose resistance is 160 ohms per phase. If the supply volatge is 70kV line-to-line, calculate a) The line-to-neutral voltage per phase.
A system consists of three components in series, each with a reliability of 0.935. A second set of three components is purchased and a redundant system is built.
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