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Two cover plates, each 1/2 in. thick, are welded to a W27 X 84 beam as shown. Knowing that l = 10 ft and b = 10.5 in., determine the maximum normal stress on a transverse section
(a) through the center of the beam,
(b) just to the left of D.
What do you understand by the terms "hogging" and "sagging" in relation to longitudinal strength? Explain how you would go about finding the longitudinal bending moment amidships of a ship:
How do you use the Cayley-Hamilton technique to find the state transition matrix and the state equation output y.
Design an op-amp astable multivibrator to have an output frequency of 400Hz and the frequency should be adjustable by plus or minus 20%. Use a 741 op-amp with supply of plus or minus 18 volts.
An inductance of 8 mH is combined in parallel with a capacitance of 1.5 µF. What is the characteristic frequency (Hz) (not radian frequency) of the combination
A 100-Ohm lossless transmission line is to be matched to a load with impedance ZL = 120 - j80 Ohm using a short-circuited stub. Use the Smith chart to determine: (a) the standing wave ratio, (b) the shortest distance from the load to the location ..
If In is greater than or equal to Th, then Out is 0. If In is less than Th, then Out is (255*(Th-In))/Th A typical calling shows the two inputs, In and Th, are passed on the stack and the return parameter, Out, is returned in Reg B.
Write down the Y-bus of the system and build this power system in PowerWorld Simulator and For the power system, find the VAR rating of a shunt capacitor bank at bus 2 that increases V2 to 0.95 p.u.
First draw the transmit con-stellation and the receive constellation with ideal phase tracking and sampling. Note:they are obviously the same constellations. Now, assume that receiver synchronization is off by a phase angle.
A 10-uF capacitor has a voltage with the followingtime dependence: v(t)=20*[1-exp(-5*t)] in unit of Volt. Determine the current, power, and energy of the capacitor as a function of time.
1. We consider a Rayleigh fading signal. Suppose that a single branch receiver has a 10% chance of being 5 dB below a certain SNR threshold γo.
What is the best return loss that can be obtained with an optimum matching network?
the CMRR of a differential votage amplifier is specified as CMRR >10³, its voltage gain is G=50. the two input voltage have values v1=10.3 and v2=10.1.
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