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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.
a.) find the Fourier coefficients of the exponential form for each signal b.) Find the Fourier coefficients of the combined trigonometric form for each signal c.) Plot both the single sided and double sided amplitude and phase spectra
plug the following items into a single circuit breaker in your house (120 V): 0.3 hp fish tank pump, a 9000 watt space heater, a 1800 watt hair dryer, a TV using 409 watts. Calculate the minimum rating of the circuit breaker necessary to safely ca..
An electronics manufacturer makes corrosion-resisitant, gold-plated connectors. Each connector is cylindrical in shape with a diameter of .100 cm and a length of 1.0 cm. Each connector is to be coated with a 10 -(micrometer) gold layer.
A repeater with additive noise of 48μW and a power gain of 20 dB has 150μW of input signal power and 1.2μW of input noise. Calculate the input SNR, the output SNR, the noise factor, and the noise figure.
120V, 60 Hz source is connected to a distribution line whose resistance, and inductive reactances are 0.1Ohm, j0.2 Ohm, respectively. Single phase, 2HP, 120V, 0.75 lagging pf. motor and 2.4Kw, 120V heater is connected in parallel.
A synchronous motor is rated as 250 hp, 4.8 kV connected 60 Hz 12 poles with Xs=0.6 pu and Rs=0.01 pu. The motor rotational losses are 1.5 kW and the excitation power is 6 kW. The motor is supplied by rated voltage at the stator.
An FM transmitter delivers to a 75 ohm antenna a signal voltage of \(V(t)=1000 sin(10^9t+4sin10^4t)\) Determine: (a)Carrier frequency (b) Intelligence frequency (c) Modulation index
A source connected to the primary winding supplies an impedance load connected to the secondary winding. The load absorbs 15 kVA at 0.8 p.f. lagging when the load voltage is 118 V. Assume that the transformer is ideal and calculate the following
if a 2.000Å (.2nm) photon interacts with the bound electron in an hydrogen atom (binding energy 13.6 eV) with a Compton collision. The electron moves forward in the same direction as the incident photon. It may be convenient to use hc 12408eV
Find and sketch y(t) when x(t) is a train of action potentials (model the action potentials as δ-impulses) 100 msec apart from each other. Justify your drawing on the basis of your answer in (c) above and related properties of LTI systems and δ(t)..
A voltage of 60cos(4πt) V appears across the terminals of a 3mF capacitor. Calculate the current through the capacitor and the energy stored in it from t=0 to t=0.125 seconds.
Two skaters are moving towards each other on an ice rink. One skater (m1=45 kg) has a speed of 8.3 m/s towards the right. The other skater (m2=73 kg) has a speed of 4.8 m/s to the left. The skaters collide and grab on to each other.
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