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A 900-mm strip of steel is bent into a full circle by two couples applied as shown. Determine
(a) the maximum thickness t of the strip if the allowable stress of the steel is 42 0 MPa,
(b) the corresponding moment M of the couples. Use E = 200 GPa.
An AM modulator has output xc(t) = A cos(2π300t) + B cos(2π270t) + B cos(2π330t) The carrier power is 200 W and the eciency is 30%. Determine A and B and the modulation index.
A steam power plant employs a closed feedwater heater to improved the thermal efficiency. Draw a chematic and T-S diagram for the cycle, and labe it. Write an expression for the thermal efficienc of the ecycle in accordance with the labelling
6-PAM is shown as below; find symbol power (variance) assuming each symbol is equally likely (i.e., probability =1/6) using the definition of variance of a random variable.
specify the parameters Rin, Avo, and Ro of an amplifier that is to be connected between a 100k ohm source and a 2k ohm load and is required to meet the following specifications: A. No more than 10% of the signal strength is lost in the connection t..
Determine the armature current buildup as a function of time, if the generator voltage constant Kg = 50 V per field ampere at rated speed.
Determine the power produced at 2 PM on December 21st from a 10 square meters south facing solar array oriented at 45 degrees from horizontal and located in Atlanta , GA. Use nominal efficiency data for single crystal silicon solar cells.
Policy of strict racial segregation imposed in South Africa to permit the continued dominance of whites politically and economically
apply the mesh current method to the network of figure 4-33 and write the matrix equation by inspection. obtain
Given a circuit with 10 resistors, a CCVS gix, two independent voltage sources v1 and v2, as well as an independent current source i1. What would be the general form of a voltaqe v across a specific resistor R
The electrostatic equivalent circuit of a human being. A person is charged to 20 kV and touches an object having a 50 ? resistance to ground. Determine the maximum current which will flow in the object.
For a particular inverter design using a power supply VDD with VOL = 0.2VDD, VOH = 0.6VDD, VIL =0.4VDD, and VIH = 0.3VDD. In order to maintain noise margins of at least 0.15V for both noise marginhigh (logical 1) and noise margin low (logical 0), wha..
Calculate the drift current in cylindrical piece of material (crossection is 1cm2) with conductivity 10E3 1/Ohm*cm if the internal electric field directed along cylinder axis equals 10 V/cm.
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