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Straight rods of 6-mm diameter and 30-m length are stored by coiling the rods inside a drum of 1.25-m inside diameter. Assuming that the yield strength is not exceeded, determine
(a) the maximum stress in a coiled rod,
(b) the corresponding bending moment in the rod. Use E = 200 GPa.
What is the magnitude of the angular momentum of the system taking the center of the rod as the origin? Treat the masses on the ends as point masses.The answer is in kg*m^2/s.
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 binary coded into PCM signals.
A 10 H inductor is connected in series with a 1.0k(ohm) resistor and a switch which closes at t=0s, Determine the voltage across the inductor and the current through the inductor for t>0 if the inductor has an initial current of 10 A.
Consider a (1;N) SIMO channel (with N > 1), represented by a N x 1 channel vector h1 with hH1 h1 = II h1 II2 = 1. Suppose that the received signal is given by x = h1s + n, where the power of the data signal s is E(IsI2)= P
Developing secret codes has interested people for centuries. A simple coding scheme can be developed by replacing each character in a text file by another character that is a fixed number of positions away in the collating sequence.
What value of capacitance will have a capacitive reactance on 180 cycles that is equal to the 60-cycle inductive reactance of a 0.061-henry inductor
A speaker can be modeled as an inductor LS (the coil that generates the magnetic field to move the speaker diaphragm) in series with a resistor RS (resistance associated with the coil wire, as well as the energy lost to the acoustic output the spe..
(a) What must the smaller resistor be adjusted to, if the larger resistor is 100 k-ohm (b) If the smaller resistor is to be formed by a pair of resistorsin parallel, with what resistor must a 2-k resistor be connected in parallel at the input to a..
figure 1 depicts a simplified scheme for cdma encoding and decoding. there are seven logical channelsall using dsss
Determine a suitable sampling frequency. Design a notch filter to remove the 50Hz component, paying particular attention to any assumptions you have made in the design.
a) The excitation voltage (Eaf), line-to-line when the generator is operating at rated voltage and current at apower factor of 0.9 lagging. b) The full load voltage regulation If the load is changed to a pure resistance and the generator is to opera..
Two electronics technicians are discussing the resistance of copper wire. Technician A says that the resistance of copper wire increases as its cross-sectional area increases. Technician B says that the resistance of a copper wire decreases as its..
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