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A steel pipe of 100-mm diameter is to support the loading shown. Knowing that the stock of pipes available has thicknesses varying from 6 mm to 24 mm in 3-mm increments, and that the allowable normal stress for the steel used is 150 MPa, determine the minimum wall thickness t that can be used.
A farmer uses cables and winch pullers B and E to plumb one side of a small barn. Knowing that the sum of the moments about the x axis of the forces exerted by the cables on the barn at points A and D is equal to 4728 lb · ft, determine the magnit..
The signal m(t)=6sin(2*pi*t) volts is transmitted using 4-bit binary PCM system. The quantizer is of the midriser type, with a step size of 1v
consider a message signal m(t)= e^(-2t) cos(2000*pi*t) u(t) a) determine the minimum step size E necessary to avoid slope overload b) calculate the minimum avaerage quantazation noise power based on part a
A 240kW 500V 1750 r/min separately excited dc generator has an overall efiiciency of 94%. The shunt field resistance is 60 ohms and the rated current is 5A. The I^2 R loss in the armature is 0.023 pu.
A circuit consists of a voltage source (Vin = 10 V at 75o phase shift, ω = 10 rad/s) in series with a parallel RL combination (R = 10 Ω, L = 0.5 H), which is in series with a capacitor (C=0.05 F). What is the value of Vo(t) across the capacitor
Put together the best possible combination of Ladder Logic from your separate programs into 1 complete program for the Siemens PLC. Configure your program for the correct PLC.
The minterms of functions F(A,B,C) and G(A,B,C) are Σ m(1,3,5,6) and Σ m(1,4,5,7). What are the minterms of F' and G', and what are the maxterms of F+G and FG
a) construct the straight-line Bode plot of the gain. Is this a low-pass, high-pass, bandpass, or bandstop function b) Use the straight-line plot to estimate the maximum gain and the frequency at which it occurs.
i- the current distribution along the antenna , and the radiated power . ii- if the sorce is now replaced by another with frequency = 300 MHz , find the new current distribution and the radiated power assuming that the input current remains .5 Amp..
Two ammeters are put in parallel, and used to measure an unknown current. The unknown current is determined by adding the readings of the two ammeters. Ammeter #1 can read a maximum current of 50[A], and has a meter resistance of 2.35ohms.
Recall that the median is the value in an ordered list of values above and below which there is an equal number of values. The median filter is often employed when one wishes to remove zero-mean additive noise while preserving sharp edges in the o..
1. Establish the minimum sampling rate in hertz. I'm not sure if my answers are correct. a) x(t) = 4 cos2(100πt) My answer: 100 Hz b) x(t) = 6 sinc(100πt) cos(200πt) My answer: 300 Hz
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