Engineering

Suppose that the UV light of wavelength 250 nm has an intensity of 20 mW cm2. If the emitted electrons are collected by applying a positive bias to the opposite electrode, what will be the photoelectric current density?
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Verify by substitution that the given functions form a basis. Solve the given initial value problem (Show details of your work): a) y" 25y = 0, cos 5x, sin 5x, y(0)=0.8, y'(0)=-6.5 b) y
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derive the equations for slope and deflection for the beam . compare the deflection at b with the deflection at midspan. (ec)p(10 points)
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Which of the following is the best measure of success for a security policy?A. Number of security controls developed as a resultB. The number of people aware of the policyC. Reduction in riskD. The rank of the highest executive who approved it
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A permeable and porous rock, regardless of lithology, is a good candidate to serve as a in an oil-producing scenario. A. reservoir rock B. seal rock C. source rock
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1. What does Drew Dudley mean when he talks about "lollipop moments?" 2. Have you had a lollipop moment in your own life? 3. Is there someone who has had a significant impact on your life that you have yet to thank? What's stopping you? 4. What are some small, everyday things that you can do that may have a far- reaching impact on those with whom you interact? 5. What do you think about Drew's way of defining leadership? What are the implicatiohs of looking at leadership in this way?
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Derive an analytical expression showing the ratio of PFR/CSTR volumes required to achieve conversion of A between 1% and 99.999%. Do this for a second order reaction. Plot your result and explain your findings.
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Which of the following statements is the reason for avoiding the use of a catch-all except clause?A. To make sure that only specific exceptions are handledB. To make sure that programmers focus more on specific handlersC. To make sure that no bug is hidden under the catch-all except blockD. To make sure that no error is ever generated in the code
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Write a function called dice_sum that prompts for a desired sum, then repeatedly simulates the rolling of 2 -six-sided dice until their sum is the desired sum. Here is a sample dialogue with the user: Desired dice sum: 9 4 and 3 = 7 3 and 5=8 5 and 6= 11 5 and 6= 11 1 and 5 = 6 6 and 3 = 9
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For a 0.18-m CMOS fabrication process:Vtn = 0.5 V, Vtp = 0.5 V, nCox = 400 A/V2, pCox = 100 A/V2, C = 8.6 fF/m2 , V (n-channel devices) = 5L (m), and VA (p-channel devices) = 6L (m).Find the small-signal model parameters(ro and gm) for both an NMOS and a PMOS transistor having W/L = 10 m/0.5 m and operating at ID = 100 A. Also, find the overdrive voltage at which each device must be operating.
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Compute the force in each member of the loaded cantilever truss and state whether each member is in tension or compression
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fill in the blank. _____ serve as the intermediary between the user and the database.
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3. (12 points) prove this is a valid argument using rules of inference and logical equivalences. use table 1.12.2 as a model. (t p) q p s r t r q u s
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which of the three microphone types has the slowest transient response?
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the square of the difference between each individual score in all groups and the mean of all the data"" describes which?
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Reduce the following expression to normal form. Show each reduction step. If already in normal form, write "normal form".(x.(y.(x y)))y
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.A computer has four page frames. The time of loading, time of last access, and the R and M bits for each page are as shown below (the times are in clock ticks):(a) Which page will NRU replace?(b) Which page will FIFO replace?(c) Which page will LRU replace?(d) Which page will second chance replace?
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Para la informacion mostrada a continuacion caudal maximo de rio 25 m3/s caudal minimo de rio 8 m3/s
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Both forms of the rmf illustrate a(n) _______ engineering process as a way to plan, design, and build a complicated system.
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Which of these is not a valid identifier? A) firstNum B)Num1 C)First-Num D) num_first E) num 1st
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Select all of the registers listed below that are changed during FETCH OPERANDS step of an LC-3 ADD instruction. Select NONE if none of the listed registered are changed. O MAR O IR MDR O NONE DST register
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which of the following modern home geometry characteristics contribute to more rapid smoke and fire spread
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Put the following forms of electromagnetic radiation in order of increasing energy:X-rayVisibleMicrowaveLowest EnergySecond Highest EnergyHighest Energy.
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show the result of inserting 10, 12, 1, 14, 6, 5, 8, 15, 3, 9, 7, 4, 11, 13, and 2, one at a time, into an initially empty binary heap
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