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A long electric cable generates heat at a rate qc. Half the cable is buried underground while the other half exchanges heat by radiation and convection. The ambient and surroundings temperatures are and respectively. The heat transfer coefficient is h.
Neglecting the thickness of the electrical insulation layer and heat loss to the ground, select a model to analyze the temperature distribution in the cable and write the heat equation and boundary conditions.
Identify the following standards organizations: ISO, ANSI, NIST, ASTM, NFPA, NEC, and NEMA.
Suppose you have a line charge and a point charge in space. A point charge of 16nC is located at Q(2,3,5) in free space, and a unifor line charge of 5nC/m is at the intersection of the planes x=2 and y=4. If the potential at the origin is 100V, fi..
One mole of an ideal gas is contained in a thermally insulated container that is connected to another container of equal volume that is initially evacuated
An AM signal is written as xc(t) = Ac (1+ µx(t))cos(2pi*fc*t) where fc is the carrier frequency, Ac is the carrier amplitude, µ is the modulation index, and x(t) is the baseband message signal. We assume that x(t) has absolute bandwidth W
State three essential requirements to be observed while launching a pulse of ultrasound from piezoelectric transducer into a gas.
For a moving average filter with bk coefficients equal to 0.2 and given that the input to the filter starts at sample x[n], how many input samples are required to define all input terms for all filter coefficients
what is the minimum value decoupling that should be used. for the value of capacitor determined in part "a" estimate the self-resonant frequency of the capacitor, printed wiring board trace combination.
Design a combinational circuit that compares two 4-bit numbers to check if they are equal. The circuit output is equal to 1 if thetwo numbers are equal and otherwise 0.
A discrete-time LTI system has the impulse response h[n]. Use linearity and time invariance to determine the system output y[n] if the input is h[n]={-2:n=-1, 3:n=0, 2:n=3, -4:n=5}
build a solar power system that is used for aresidential application and demonstrate in front of my class. Here are the components used in this system: Solar panel,solar charge controller, 12 V lead acid battery, DC to AC inverter,and a battery te..
A source X produces symbols A, B, C, D, and E with probabilities 0.5, 0.25, 0.125, 0.0625 and 0.0625 (a) Find the information content of X. (b) Give a fixed length code for X. Compute its efficiency. (c) Derive a Huffman code for X
A small gasoline engine can put out 24,000 N-m/min of mechanical power. The engine is used to drive an electrical generator that is 70 percent efficient. 1 N-m = 2.78 X 10-4W-h. Find the output of the generator in Watts.
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