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Calculate the torsional spring stiffness constant for a steel shaft 0.5" in diameter and 2.5 ft long.Express your result in lbf/rad, and in ft/deg.
Apply the mesh current method to the network of figure 4-33 and write the matrix equation by inspection. Obtain current I1 by expanding the numerator determinant about the column containing the
A wafer 100mm in diameter is mounted in an electron-beam evaporation system in which spherical radius is 40cm.Estimate the worst case variation in film thickness between the center and edges of
Design the combinational logic circuit for an elevator controller such that the option to go up or down by only one floor is disabled. Assume that the building the elevator is in has 4 floors. Y
Professor Patt is trying to decide when he should shave his beard. Your job is to design a logic circuit whose output Y is equal to 1 when Professor Patt should shave his beard, and 0 when he sho
Using the symbol table on the right, show the LC-3 assembly language generated by a non- optimizing C compiler for each of the following C statements. (Note: "Non-optimizing" means that all variab
A positive charge of magnitude q1 lies at the origin. Derive an expression for the incremental work done in moving a second point charge q2 through a distance dx from the starting position (x, y
A sphere of radius a has a bound charge of Q distributed uniformly over it. The sphere is surrounded by a uniform fluid dielectric medium of permittivity .The fluid contains a free charge density g
Suppose a fair coin is tossed n times. Each coin toss costs 'd' dollars and the reward in obtaining 'X' heads is aX^2 + bX. Find the expected value of the net reward.
Depicts a simplified scheme for CDMA encoding and decoding. There are seven logical channels,all using DSSS with a spreading code of 7 bits. Assume that all sources are synchronized. If all seven so
How do you find the calculus, the derivative and integral of a sinewave?How do you show that a triangle wave can be obtained from a square?What is the inverse of dSQ/dt?
Ohn "explains" to Jasmine, after the battery in his calculator died, that a 9 Volt battery can be used to charge a 1.5 Volt battery simply by connecting their negative terminals together and con
The upper and lower conducting pltes of a large parallel plate capacitor are separeted by distance d and maintanied at potentials V0 and 0 respectively. a dilectric slab of dielectric constant 6.
A discrete memoryless source has a symbol alphabet of |A| = 10. Determine the upper and lower bounds on its entropy?
A dishonest gambler has a loaded die which turns up the number 1 with probability 2/3 and the numbers 2 to 6 with probability 1/15 each. Unfortunately, he left his loaded die in a box with two hon
A curve of radius 159 m is banked at an angle of 11°. An 810-kg car negotiates the curve at 93 km/h without skidding. Neglect the effects of air drag and rolling friction. Find the normal fo
What is the impedance of a resistor R in parallel with a series combination of a capacitor C and an inductor L? Assume angular frequency omega(w).
Show that the most probable electron energy in the conduction band of a semiconductor is (kT)/2 above the bottom of the band (assume that the Fermi level is several kT below the conduction band)
The current i = 2t2 - 1 A, 1≤ t ≤ 3 s, is flowing through a certain circuit element. (a) If the element is a 4 H inductor, what energy is delivered to it in the given time interval? (b) If th
Use as few 3×8 binary-decimal decoders and 3-input NOR gates as possible to implement a BCD Squaring circuit. That is, it accepts a BCD digit, X (in 4-bit binary form) as input to produce
Imagine you are advising a company that owns a large database and has customers distributed across the USA. The company wants to give its customers the lowest possible latency when accessing its
Suppose you want to move a database from its current location to a new location (and computer) that is three hours driving time away. The data has been copied on to 50 DVDs, each containing 4.7G
The donor concentration in a silicon sample at 300K is ND = 1.2 x 1015 cm-3. 1 x 1016 cm-3 acceptor atoms are added to form a compensated p-type semiconductor so that the Fermi level is 0.26 eV
RC ciruit= Current course (3u(-t) A) in parrallel to 6k ohm resistor and 5uF cap. Determine the instantaneous power absorbed by the resistor at t=(0); 30ms; and 90ms?
How do you write Kirchhoff's voltage law equation for a circuit.How do you write flow rate equations for a fluid tank system.What is the exact form of the step response of a 1st-order differential