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Engineering
Maximo Haley
Consider a large plane wall of thickness L = 0.3 m, thermal conductivity k = 2.5 W/m · °C, and surface area A = 12 m2. The left side of the wall at x = 0 is subjected to a net heat flux of q0 = 700 W/m2 while the temperature at that surface is measured to be T1 = 80°C. Assuming constant thermal conductivity and no heat generation in the wall, a. Express the differential equation and the boundary conditions for steady onedimensional heat conduction through the wall. b. Obtain a relation for the variation of temperature in the wall by solving the differential equation. c. Evaluate the temperature of the right surface of the wall at x = L.
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Engineering
Yasmine Hamilton
The longer a wire will run the thicker it needs to be to prevent voltage drop.
True or False?
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Engineering
Noemi Cantrell
4. Porcelain enamel is sometimes referred to as A. "glass lining" B. kaolin C. vitreous enamel D. Both A and C.
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Engineering
Shyann Nguyen
Tech A says that in some cases, the electronic brake control module can be programmed with a new tire size to restore proper electronic brake control performance. Tech B says that there could be an electronic brake control module available for installation that matches a new tire size. Who is correct? A. Tech AB. Tech BC. Both Techs A and BD. Neither Tech A nor B
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Engineering
Elliot Stark
Which branch of engineering studies the physical behavior of metallic elements?
A.
aerospace engineering
B.
textile engineering
C.
materials engineering
D.
pharmaceutical engineering
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Engineering
Yin
3. Suppose you work for this company that evaluates Boolean circuits in exponential time. Since you are very smart, your manager wants you to write some code that will solve these problems in polynomial time. You have no idea of how to solve this in polynomial time. You search on the internet but do not find anything. However, your roommate tells you that he just finished writing a program called, FormulaII, that solves a boolean formula in polynomial time and would let you use it. Now you are in a position to write a program to solve boolean circuits in polynomial time. Write high level pseudo-code.
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Engineering
Harley Neal
The first powered dirigible in the United States used a
engine.
O Bell
O Curtiss
O Lahm
O Wright
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Engineering
Quinn Miranda
Question 7 options: A steel tape that has a length of 100.00 at 68 degrees F is to be used to lay off a building with the dimensions 450.00 ft by 515.00 ft. What should the tape readings be if the tape temperature is 104 degrees F at the time of measurement
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Engineering
Marin Sawyer
Suppose you must remove an average of 3.9*108J of thermal energy per day to keep your house cool during the summer. Part A If you upgrade from an old air conditioner with a COP of 2.3 to a new air conditioner with a COP of 6.0, by how many joules is the required mechanical work reduced each day?
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Engineering
Tatum Owen
Explain the use of the Kanban system in a production line?
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Engineering
Micah Estes
3 things about roller coasters
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Engineering
Terry Mccarthy
What did the ancient Greeks use simple machines for?
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Engineering
Fletcher Benson
What % of Nickel is needed to increase toughness?
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Engineering
Antwan Montoya
Be
37. When you identify that a roadway is narrowing
from a multilane to a single lane, you should
. a. move into the through lane as soon as
possible.
. b. stop as close as possible to the warning sign
before changing lanes.
c. identify what is causing the roadway to
narrow.
d. control the actions of the other roadway
users.
manage
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Engineering
Macintosh
A football player attempts a 30-yd field goal. If he is able to impart a velocity u of 100 ft/sec to the ball, compute the minimum angle θ. for which the ball will clear the crossbar of the goal. (Hint: Let m = tan θ)
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