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In a satellite radio system, 128 stations of stereo quality are to be packaged in one data stream. For each station, two(left and right) signals of bandwidth 15,000 hz are sampled, quantized, and bi
1- find the inverse Laplace transforms of the following functions: A- f1(s)= 50(s+10)/((s+5)(s+20)) b- f2(s)= (2s^2)((s+200)(s+500)) 2- find the inverse Laplace transforms of the following functions a
A 50 ohm source is connected to a 50 ohm receiver using 30 ft of RG58U coaxial cable. If the source output is 100 MHz and -30dBm, determine the voltage at the receiver in mV and dBuV [6.05 mV , 75.6
Suppose we have a linear function f(X). We are given two points on the line and their values: a, f (a), b, and f(b). Now we need to use linear interpolation to compute the value of a new point f(c).
Consider a uniformly charged sphere of radius R1 with a spherical hole of radius R2 displaced a distance x0 from the center. Let ρ be the charge density. a) What is E on the x axis as a function
The current in a 20 mH inductor is known to be i = 40 mA, t < 0; i = A,e~mm[ + yW-4()(X,0'A, 0. The voltage across the inductor (passive sign convention) is 28 V at t = 0. a) Find the expression
Approximately how many harmonics terms are required in the Fourier Series of a bipolar square wave with 50% duty cycle and amplitude A to represent 99% of its power?
If Vid is 20-mV peak-to-peak sine wave applied in a balanced manner but superimposed on Vcm = 0.5 V, what is the lowest value that Vdd must have to ensure saturation -mode for Q1 and Q2 at all times
assuming a perfect diode, I have a small circut which has three legs joined at the center. One leg has a +12V supply and a 1K ohm resister. Second leg has a -16 Volt supply witha 2K ohm resister, an
A nickel-iron ring withcross-sectional area 0.85cm2 is expected to be driven to itssatur-ation magnetization of 1.1T in a ?eld of 800 A/m. The ?ux density will be measured by an electronic ?ux integ
Compare the field at the center of a Helmholtz coil pair and at the center of a solenoid, if both use the same total length of wire and carry the same current.Take the solenoid length equal to the s
The air density is 1.23 kg/m^3. If the rolling frictional force is determined to be 47,500 N and the power required to sustain the current velocity is 4.681 MW, determine the approximate drag coeffi
A car with a projected frontal area of 1.8 m^2 is traveling at 136 KPH. If the drag coefficient of the car is 0.45 and the air density is 1.23 kg/m^3, find the total aerodynamic drag force on the ca
Write the switching expression for the burglar alarm that produces a logic 1 (rings a bell) when the safe is moved and the control switch is closed, or when the closet is o pen after banking hours,
The photoelectric threshold wavelength for Tungsten is 2300 Å. Find the energy in eV of the emitted electrons from the surface by ultraviolet light of wavelength 1800 Å.
Data Transfer/Manipulation Instructions a) If accA holds $16 and accB holds $2A, what memory locations will change value after executing the STD $637F instruction. Identify the new value in any change
a) If accA holds $16 and accB holds $2A, what values will be in the each accumulators after executing the ABA instruction b) What series of instructions would achieve the 16-bit subtraction of $1234 f
An electronic timer consists of a resistor whose value is 10,000 ohms, a capacitor of 30 pico farads, and a 10 volt source which is applied across the RC connection at time t =0.
(a) Show that the actual response at f=fT is approximately 9dB below the maximum value. What is the phase angle at this frequency (b) what is the slope of the magnitude plot for f>>fT What is
A photoelectric surface has a work function of 4eV. What is the maximum velocity of the photoelectrons emitted by light if frequency 10^15 Hz incident on the surface h = 6.6 * 10^-34 Joules-second e
A causal LTI system has the difference equation y[n]+0.25y[n-1]-0.125y[n-2] = x[n]+x[n-1]. What is the impulse response of this system and what is it's output y[n] for input signal x[n] = (-1)^n u[n].
A lossless transmission line with a characteristic impedance of 75 ohms is terminated by a load of 120 ohms. The length of line is 1.25 lamda. If the line is energized by a source of 100 V (rms) wit
The resistance of the coil is 0.2 ohm. The inductance of the coil is 1.2e-4 H. The rotor inertia is 1.0e-5 kg m2. The current to torque gain is 0.03 Nm/A. The friction torque is 0.09 Nm. A 12 V volt
The resistance of the coil is .4 ohm. The inductance of the coil is 2.4e-4 H. The rotor inertia is 2.0e-5 kg m2. The current to torque gain is 0.06 Nm/A. The friction torque is 0.18 Nm. A 12 V volta