Typically, backing strips that will be removed after welding are constructed of a substance other than the base metal.
Do support bars need to be taken off?These backer bars cannot be removed, thus they must be left in place. For structures that are statically loaded, this is usually fine. In most cases, backing must be continuous.
What are the purposes of backing bars?At the base of a welded junction, a weld backer bar is used to support the molten weld metal, making it easier to obtain a fully penetrated joint. Before the groove weld is finished, a steel backing bar may be placed using a discontinuous/continuous fillet or tack weld.
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PROBLEM 6.32 For The Given Loading, Determine The Zero - Force Members In Each Of The Two Trusses Shown.
For The Given Loading, Truss A: AB, CD, EF ,Truss B: AB, CD, EF, GH .
What is force ?A push is an effect that can alter an object's motion according to physics. A force may cause an object with mass to accelerate when it changes its velocity, for as when it drifts away from rest. A known way to describe force is as a push or a pull. A vector quantity, it has both direction and magnitude. It is computed using the newton SI unit (N). Force is represented by the letter F. (formerly P).
What force is the strongest?The four forces are the electromagnetic force, gravity, the weak nuclear force, and the strong nuclear force, in that order.
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List the point coordinates for all atoms that are associated with the FCC unit cell (See Figure a) (b Figure 3.1 Face centered cubic crystal structure, (a) a hard sphere unit cell representation, (b) a reduced-sphere unit cell, and (c) an aggregate of many atoms.
The point coordinates for all atoms that are associated with the FCC unit cell, i.e. fig b are:
bottom face: (1,0,0) (1,1,0) (0,1,0) (1/2,1/2,0)
Tope face: (0,0,1) (1,0,1) (1,1,1) (0,0,1) (1/2,1/2,1)
front and back face: (1/2,1,1/2) (1/2,0,1/2)
Left and Right face: (0,1/2,1/2) (1,1/2,1/2)
What is FCC unit cell?Atoms are found in an FCC unit cell at the centre of each cube's face and at each of the crystal lattice's four corners. Only half of each atom, which is located at the face centre, belongs to one particular cell and is shared by two adjacent unit cells.
A crystal lattice in an FCC unit cell contains atoms in each corner. Additionally, every cube face has an atom in the centre of it. Two next-to-one another unit cells share this face-center atom. A unit cell only contains 12 of each atom.
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Gain bode diagram of minimum phase as follow dash line is original L0(w0), solid line is compensated L(w)
The amount of gain that can be raised or lowered without causing the system to become unstable is referred to as the gain margin.
What is the gain in a Bode diagram?The gain margin is the maximum gain that can be achieved without causing the system to become unstable. Typically, a magnitude in dB is used to express it. Usually, the Bode plot can be used to immediately read the gain margin.Remember that the magnitude Bode plot moves upward as we increase system gain. Additionally, the crossover frequency is shifted to the right. Phase margin indicates relative stability, or the propensity to oscillate during its damped response to an input change like a step function. Typically, when the crossover frequency advances to the right, the crossover frequency approaches the frequency where the phase is -180 degrees. Gain margin shows unwavering stability and the maximum amount that the system can oscillate.
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customer instructions are key to a perfect delivery. true or false
It is true that following client instructions is essential for a flawless delivery. We need 8–15 seconds for eye-lead to use REPS and Checks to remove distractions.
For the first query, "Delivery," the topic is how to satisfy clients by delivering what they have requested. Therefore, by according to the customer's instructions, we can accomplish a flawless delivery.
For the second question, REPS and check means identifying the risks, removing them, making plans, and looking for space. It also means checking for yourself, the risks, the space, and the speed.
To prevent accidents while driving, the REPS and check procedure is employed as a safety measurement. The eye-lead varies depending on the route followed, but it typically lasts between 8 and 15 seconds.
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12.15 Each of the systems shown is initially at rest. Neglecting axle friction and the masses of the pulleys, determine for each system (a) the acceleration of block A, (b) the velocity of block A after it has moved through 10 ft, (c) the time required for block A to reach a velocity of 20 ft/s.
(a) The acceleration of block A is 10 ft/s^2.
(b) The velocity of block A after it has moved through 10 ft is 20 ft/s.
(c) The time required for block A to reach a velocity of 20 ft/s is 2 seconds.
How does acceleration work?
The rate at which an object's velocity with respect to time changes is referred to as accelerating in mechanics. It is a vector quantity to speed (in that they have magnitude and direction). The direction of the net force applied on an item determines the direction of its acceleration. According to Newton's Second Law, the amount of an organism's acceleration is the cumulative result of two causes:
(1) That item's mass, based on the materials from of which it is formed, — size is inversely related to the object's mass. (2) The net balance of all external forces acting against that object — magnitude is directly related to this net resultant force.
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A child having a mass of 50 kg holds her legs up as shown as she swings downward from rest at ?1=30o . Her center of mass is located at point G1 (a radius of 2.8 m from the origin). When she is at the bottom position of ?=0o , she suddenly lets her legs come down, (approximately instantaneously) shifting her center of mass to position G2 (a radius of 3 m from the origin). Determine her speed in the upswing immediately following the change in the position of her center of mass. (Think about what quantity has changed now that her center of mass is further from origin.) Also find the angle ?2 to which she swings before momentarily coming to rest. Treat the child’s body as a particle. HINT: Think about this problem in 3 phases: 1) Swinging from initial position to vertical position with legs up, 2) Instantaneously bending legs while in vertical position, and 3) swinging from vertical to final position with legs bent.....Answer: v2 = 2.53 m/s, ?2=27o......Please show a clear and understandable solution
For a kid weighing 50 kg, does she hold her legs up when she swings down from rest at? 1 = 30° and Ф2 = 27°
Fint prior to = 0 T1 9V1 = T2 + V2 0 + 2.8 (1-cos30) (50) 9.81 = 1/2 (50) (50) V12 plus 0 V1 equals 2.713 m/sec
H1 = H2 \s50(2.713)(2.8) = 50 V2 (3) (3)
V2 = 2.532 =2.53 m/sec immediately following = 0, T2 +V2 = T2, V3 1/2 850(2.532)2, and 50(9/81)(3). (1-cos02)
27 degree is equal to 0.1089 = 1-cos02 2.
Children grow and develop in certain ways. They must be able to sit up on their own, for instance, before they can swings and subsequently walk. The same is true for how they master penmanship. Before the child can write, they tear, cut, and scribble on things. Before kids can hold a pencil and form readable symbols, called letters, in their hands, they must first develop the tiny muscles (fine motor muscles).
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A beam has the extruded cross section shown below, where t-20 mm. 5t 2t t'2t % Matlab input: t-20; Mz-1793; Find y, i.e., the signed distance from the z'-axis to the z-axis, where z is the centroidal axis of the cross section. Determine the moment of inertia I with respect to the centroidal axis z. 6 x10° mm'4 Determine the absolute value of the maximum tensile normal stress σ when the cross-section is subject to the moment M2- 1793 N. m MPa
The spreadsheet listing the pairwise distances in miles between the top 100 US cities by population may be found in the attached Distances.xlsx file.
Below is a screenshot of the spreadsheet. The city names are formatted as follows in the first row and first column: Nashville, TN is an example of a city name, comma, and capitalized state abbreviation. Keep in mind that the spreadsheet's first cell, A1, is empty. Create the get distance function, which takes two character vector inputs representing the names of two cities, as its only parameter. As an output argument called distance, the function returns the separation in between them. Get distance("Seattle, WA","Miami, FL"), for instance, should return 3723. The function returns -1 if one or both of the provided cities are not found in the file.
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bernoulli equation cannot be applied when the flow is
1) Rotational
2) steady
Note that the Bernoulli equation cannot be applied when the flow is "Rotational" (Option 1)
What is the Bernoulli equation?Bernoulli's equation formula represents a relationship between a fluid's pressure, kinetic energy, and gravitational potential energy in a container.
The Bernoulli equation assumes that the fluid flow is irrotational, meaning there is no net fluid flow around a closed loop. Rotational flow, also known as turbulent flow, is characterized by eddies and vortices and cannot be described using the Bernoulli equation.
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For the frame and loading shown, determine the components of all forces acting on member ABE when P = 13.8 kN. (Round the final answers to two decimal places.)
When examining a force's geometric representation or its algebraic equivalent, the components of a force can be viewed as horizontal and vertical changes.
The vertical and horizontal forces that combine to create the resulting force are represented by a force's components. A force can be broken down into two parts that are either inclined or perpendicular to one another. Two components are referred to as rectangular components when they are perpendicular to one another and as inclined components when they are inclined toward one another. Force has two parts: magnitude and direction. When examining a force's geometric representation or its algebraic equivalent, the components of a force can be viewed as horizontal and vertical changes.
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. There are given three numbers: A, B and C. Even if one of them equal 5 output TRUE, othewise output FALSE.
This can be achieved through a variety of programming languages, here's an example using Python:
A = 4
B = 5
C = 6
if A == 5 or B == 5 or C == 5:
print("TRUE")
else:
print("FALSE")
What is a programming language?A formal language with many instructions is referred to as a programming language. These guidelines are presented to find different outputs. Computer programs are the main use of programming languages. A set of guidelines are presented to ensure the computer's proper operation.
Programming languages are used to control the external devices. In this example, the code checks if any of the variables A, B, or C is equal to 5. If any of them are, the code will output "TRUE", otherwise it will output "FALSE".
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© 2022. Grand Canyon University. All Rights Reserved.APA Activity 2: Citing PracticeCreate a reference page by citing the following sources in correct APA format. You may use your text or the GCU Library website to help you, but do not use citation generators.•A textbook: The second edition of Psychology and Your Life by Robert S. Feldman written in 2013. The publishing city is New York, New York published from McGraw Hill Companies.•Snickers commercial https://youtu.be/2rF_FRCd_LA •PBS Frontline special League of Denial •The document found at this address:http://www.eia.gov/forecasts/aeo/er/pdf/0383er(2013).pdf•The movie Silver Linings Playbook•The episode of Friends titled: The One After Joey and Rachel Kiss•The 7th edition of the APA Manual
Using APA reference style, the references is attached below from Feldman, R. S. (2013) to American Psychology Association (2020)
What is APA Reference StyleAPA reference style is a style of citing sources used by the American Psychological Association. It is primarily used in the social sciences and includes guidelines for citing sources both within the text of a document and in the reference list at the end of the document. The guidelines provide a consistent way of citing sources to make it easier for readers to identify and locate the sources cited in a document.
In the given problem, if we need to write the reference using APA style, it will take this format below
Reference Page:
Feldman, R. S. (2013). Psychology and your life (2nd ed.). New York, NY: McGraw Hill Companies.
Frontline. (n.d.). League of denial. Retrieved from https://www.pbs.org/wgbh/frontline/film/league-of-denial/
Friends. (2004). The one after Joey and Rachel kiss [Television series episode]. In D. Crane, & M. Kauffman (Executive producers), Friends. Burbank, CA: Warner Bros. Television.
Silver Linings Playbook. (2012). [Motion Picture]. United States: The Weinstein Company.
U.S. Energy Information Administration. (2013). Annual energy outlook 2013 with projections to 2040. Retrieved from http://www.eia.gov/forecasts/aeo/er/pdf/0383er(2013).pdf
Snickers. (2013, April 2). You’re not you when you’re hungry [Video file]. Retrieved from https://youtu.be/2rF_FRCd_LA
American Psychological Association. (2020). Publication manual of the American Psychological Association (7th ed.). doi:10.1037/0000165-000
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Which factor that affects income is out of a worker's personal control? a. educationb. location c. productivity d. politics
Economic downturn, politics and technology change are factors that affect income that is not within a workers control.
What are the economic factors affecting employment?A decline in the economy high level of productivity Cost of insurance rising Low demand for the products of the company. Productivity is the primary factor that influences how employees affect a firm. It goes without saying that motivated, enthusiastic, and engaged individuals produce more at work. In business, productive employees are priceless because they increase the company's revenue significantly. The job market is impacted by a number of things. These include the frequency of job changes, rates of unemployment and employment, immigration, income inequality, discrimination, seasonality, and the state of the economy as a whole. In business, productive employees are priceless because they increase the company's revenue significantly.To learn more about economic factors refer to:
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2.35 Calculate Vo and Io in the circuit of Fig. 2.99
Vo and Io in the circuit is v^0=32V And I^0=0.8 A
Step by step explanation:
Given circuit:
Resultant equivalent resistance is
R^ e q=(700||30)+(20||5)
=21+4
R^ e q=25
Total current=v/R^ e q
I=200/25
I=8A
Therefore ,Apply nodal analysis at v^ 1
v^ 0=v^1
200-V0/70+ 200-v^ 0/30=8
6000-30v^0+14000-70v^0/2100=8
20000-100v^0/2100=8
=20000-100v^0=16800
=100v^0=3200
v^0=3200/100
v^0=32V
Apply nodal at V^ 2.
I^0=V^0-200/30+v^0/5
I^0=32-200/30+32/5
I^0=-168/30+32/5
I^0=-5.6+6.4
I^0=0.8 A
What Does Equivalent Resistance Mean?
An equivalent resistance is defined in physics as the sum of the resistances of the resistors connected in a circuit. Resistors can be wired in series or parallel. Assume that the three resistors are R1, R2, and R3.
If you connect these three resistors in series, the equivalent resistance is given by
Re = R1 + R2 + R3
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Where would an engineer indicate the unit of measurement used in a design
An engineer would indicate the unit of measurement used in a design in millimeters.
What are measurements?The primary unit of measurement is the stocking unit of measure for a given item in a specific organization. You must define an item attribute that serves as the primary unit of measurement when creating each item.
Because the technical drawings are scaled, engineers, architects, and builders may create the items according to exact specifications.
When understanding scales, the number on the left relates to the measurement of the drawing, while the number on the right represents the actual size of the object.
Therefore, a millimeter is used in a design.
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A pipeline, used for the transport of crude oil, is buried in the earth such that its centerline is a distance of 1.5m below the surface. The pipe has an outer diameter of 0.5 m and is insulated with a layer of cellular glass 100 mm thick. What is the heat loss per unit length of pipe when heated oil at 120 C flows through the pipe and the surface of the earth is at a temperature of 0 C?
To get the heat loss of an entire building, you divide the building into areas that have the same U value, and then add them all up to get the total heat loss.
How do you calculate heat loss?Q=U*A*T, or more simply put, the heat loss of an area of size A is determined by the U value of the materials and the temperature difference between inside and outside (i.e., the temperature difference between the two surfaces, not the two air temperatures).
You must divide a building into sections with the same U value in order to calculate the overall heat loss for the entire structure.
Thermal conductivity is the ability of an object to transfer thermal energy into another object when it comes into touch with one that is at a lower temperature. A cylinder's energy transfer rate while its contents are at high temperatures
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Solve the differential equation by variation of parameters. (Use C1 and C2 as arbitrary constants.)
y'' − 16y = 16x/e^4x
Refer to the attached images. Final answer is circled.
A binary tree has L leaves and K nodes, each with two children. What is the relation of L and K ?
Option
L = K -1
L = 2K + 1
L = K - 1
There is no fixed relation between L and K
K=2*L-1 is the relationship between the number of nodes (K) and leaves (L). Therefore, L and k do not always have a stable relationship.
Number of internal nodes for L leaves = L - 1
So total nodes = 2L – 1
The following relation applies for a k-ary tree where each node has k offspring or none at all: L = (k-1)*n + 1.
where n represents the number of internal nodes and L represents the number of leaf nodes.
Every internal node will have K children since the k tree is fully developed.
A pointer to the topmost node of the tree, sometimes referred to as the "root," serves as the representation of a binary tree. The root's value is NULL if the tree is empty. The following components are present in each node of a binary tree:
Pointer to left kid in data
to the right-hand kid
Basic Binary Tree Operation:
adding a new element.
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In the figure, G1 is represented by which numbered part(s) of the cycle?
According to the figure, G1 is represented by parts 4, 5, and 6 numbered part(s) of the cycle.
What is numbered part?
Numbered parts are individual parts of a larger item that are identified by a unique numerical identifier. This number can be used to easily locate and identify the part within the larger item. Numbered parts are often used in complex systems, such as machines, tools, vehicles, and buildings, where multiple components must be located and identified quickly and accurately. For example, a car engine may have hundreds of different numbered parts, each with its own unique identifier. Numbered parts also make it easier for manufacturers to track and inventory the parts used in their products. This helps them to ensure that the right parts are in place and available when they are needed.
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Why is possessing an ASE certification important to one's future as a technician?
Select one:
O a. Leads to better employment opportunities
O b. Allows the technician to transport raw materials to factories
O C.
Technicians gain firsthand experience in communicating effectively with customers in
person
O d. Leads to apprenticeship opportunities
Note that possessing an ASE Certification is crucial because; " Leads to better employment opportunities." (Option D)
What is an ASE Certification?ASE certification, commonly known as Automobile Service Excellence, is given to an automotive mechanic who has finished the necessary training and acquired their Automotive Service Excellence Certified Master Technicians criteria.
There are 58 ASE certification examinations available, covering nearly every facet of the automobile repair and service sector.
The National Institute for Automotive Service Excellence (ASE) offers four levels of certification. They are:
ASE entry-level certification, Professional technician certification, Master technician certification, and ASE advanced level specialist certification.Learn more about ASE Certification:
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Use the formula method to determine the resultant force that this liquid exerts on plate B.
Use the formula method to determine the location of the resultant force that this liquid exerts on plate B measured from the bottom of the tank.
The force that this liquid ultimately exerts on plate B is therefore: F = 1000 kg/m3 9.8 m/s2 0.5 m2 2 m = 98 N
How does force work?A push is an effect that can alter an object's motion according to physics. A force may cause an object with mass to accelerate when it changes its velocity, for as when it drifts away from rest. A known way to describe force is as a push or a pull. A vector quantity, it has both direction and magnitude. It is computed using the newton SI unit (N). Force is represented by the letter F. (formerly P).
What three qualities do all forces share?Forces are always strong and have a purpose. As seen in the video whenever Zoe softly strikes the golf ball, forces can be mild. Or even a force can indeed be strong, as in the case of Izzy's powerful strike on the ball. Forces have a direction as well.
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A burn-off tet wa performed to determine the volume fraction of
contituent in a gla-fiber-reinforced epoxy compoite. The following
obervation were made:
Weight of empty crucible = 47. 6504 g
Weight of crucible and a mall piece of compoite = 50. 1817 g
Weight of crucible and gla after the burn-off = 49. 4476 g
Calculate the weight and volume fraction of gla fiber and epoxy
rein. Aume that the denitie of the fiber and rein are 2. 5 and 1. 2
gl cm3, repectively
Volume fraction=1.175.
Explanation:
Given:
Weight of empty crucible=47. 6504 g.
Weight of crucible and piece of composite= 50. 1817 g
Weight of crucible and glass after burn-off = 49. 4476 g
weight and volume fraction of glass fiber and
epoxy resin= w glass/w resin
w resin=50. 1817 g- 49. 4476 g = 0.7341 g
w glass=49. 4476 g-47. 6504 g = 1.7972 g
w fraction=1.7972 g/0.7341 g=2.448
Now,
volume of glass fiber=1.7972 g/2.5g/cm^ 3
=0.7188 cm^ 3
volume of epoxy resin=0.7341 g/1.29/cm^ 3
=0.61175 cm^ 3
Volume fraction=v glass/v epoxy resin=0.7188/0.61175cm^ 3
Volume fraction=1.175.
The volume fraction (percentage by volume) is one way to express the composition of a mixture with a dimensionless quantity; others are the mass fraction (percentage by weight) and mole fraction (percentage by moles)
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When is Environmental Impact Assessment required?
Environmental Impact Assessment (EIA) is often required for significant development projects such as road construction, building construction, and industrial facility construction in order to analyze and minimize any environmental repercussions.
What is Environmental Impact Assessment?It is to be noted that the process of determining how a project or activity will affect the environment is known as environmental impact assessment.
It assists individuals in ensuring that the project will not hurt animals, plants, or natural resources. This manner, we can be sure that the things we construct or do won't affect the world.
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elivery Execution Knowledge Check Question 1 of 8. When you walk into the station at the end of your route, what should you do? Check in with your DSP and being any undeliverable packages back to the Amazon Retum to Station desk O leave the undeliverable packages with your OSP then go off duty You don't have to return to the station at the end of your day Sign out of your device and love Mark for foto up
Answer:
ur hhbkiegtbckdj you and your family a very merry merry
During a construction project, engineers used explosives to excavate 140 feet of tunnel into a mountain. But because of time constraints and environmental concerns, they brought in a tunnel boring machine (tbm) to excavate the rest of the tunnel. The data table lists some observations an engineer made about the length of the tunnel after the tbm was introduced. How much of the tunnel was completed 26 days after the tbm was introduced?.
The engineer observed that the tunnel was 460 feet long 26 days after the tbm was introduced. Therefore, the tunnel was completed 460 feet - 140 feet = 320 feet after the tbm was introduced.
What is tunnel?
A tunnel is an underground or underwater passageway, typically constructed for transportation purposes. Tunnels are typically used to bypass obstacles such as mountains, rivers, or bodies of water, or to provide a secure route for transportation of goods and people. Tunnels may also be used for mining, research, or military purposes. Tunnels can be constructed using a variety of materials, including steel, reinforced concrete, rock, earth and soil. The length of a tunnel varies from a few metres to several kilometres. When constructing a tunnel, safety is of paramount importance. Special engineering techniques are used to ensure the stability of the tunnel and its construction is closely monitored and regulated. Tunnels are designed to be resistant to weather, vibration, fire, and other environmental factors.
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What happens to the generated voltage, if a more powerful magnet is used?
1) The generated voltage gets higher
2) the generated voltage gets lower
3) the amount of voltage generated stay the same
Problem 2: When the input to a given audio amplifier is 4cos(800nt) + cos (1000nt) mV, the
measured frequency component at 1000Hz is 1V and the ratio of the frequency components at
500 Hz to that at 1000 Hz is 0.002. Represent the amplifier output-input characteristic by
Uo (t) = aqui (t) + az lu; (t) ]2.
a) Evaluate the numerical values of a1, a2 from the test data given. This type of test is known
as the intermodulation distortion test.
b) What would you expect to be magnitudes of the frequency component at 800 Hz and at
1600 Hz?
The numerical values of a2 = 0.002*a1 / 16
The magnitudes of the frequency component at 800 Hz and at
1600 Hz are: 4²a2cos²(800nt) and 8²a2cos²(800nt)cos²(1000nt)
What is the numerical values?a) To evaluate the numerical values of a1 and a2, we can use the test data given. The measured frequency component at 1000 Hz is 1V, so we can set that as the value of a1cos(1000nt) in the amplifier output equation:
Uo(t) = a1cos(1000nt) + a2[4cos(800nt) + cos(1000nt)]²
The ratio of the frequency components at 500 Hz to that at 1000 Hz is 0.002, so we can use that to find the value of a2:
Uo(t) = a1cos(1000nt) + a2[4cos(800nt) + cos(1000nt)]²
= a1cos(1000nt) + a2[16cos²(800nt) + 8cos(800nt)cos(1000nt) + cos²(1000nt)]
= a1cos(1000nt) + a2(16cos²(800nt) + 8cos(800nt)cos(1000nt) + cos²(1000nt))
The frequency component at 500 Hz is the second harmonic of the 800 Hz component and is given by 16cos²(800nt), so we can compare it to the 1000 Hz component:
16cos²(800nt) = 0.002 * a1cos(1000nt)
a2 = 0.002*a1 / 16
b) Since the input to the amplifier is a sum of cosine functions with different frequencies, the output will also be a sum of cosine functions with the same frequencies, but with different amplitudes.
The 800 Hz component in the input is 4cos(800nt) and is squared in the output equation, so the 800 Hz component in the output will be 4^2a2cos^2(800nt) which is a smaller amplitude than the 800 Hz component in the input.
The 1600 Hz component in the input is created by the product of the 800 Hz component and the 1000 Hz component, which is 8cos(800nt)cos(1000nt) and is squared in the output equation. so the 1600 Hz component in the output will be 8^2a2cos^2(800nt)cos^2(1000nt) which is even smaller than the 800 Hz component in the input.
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A bar having the cross section shown has been formed by securely bonding brass and aluminum stock. Taking h=9 mm and using the data given below, determine the largest permissible bending moment when the composite bar is bent about a horizontal axis. Brass h Aluminium 30 mm 30 min Aluminum Brass . Modulus of elasticity 70 GPa 105 GPa Allowable stress 100 MPa 160 MPa
The largest permissible bending moment is____ KN m
According to the question, the largest permissible bending moment is 1382.5 KN m.
What is bending moment?
Bending moment is a mechanical force that causes a bending or flexing effect on a structural element such as a beam, resulting in the creation of a moment or torque about the element's neutral axis. It is calculated based on the internal forces acting on the element, such as the weight of the beam and the force of the load applied to it. Bending moment can be positive or negative, depending on the direction of the force and the location of the neutral axis.
M = (h×A×E×σ_allowable)/6
M = ((9mm×30mm×70GPa×100MPa)+(9mm×30mm×105GPa×160MPa))/6
M = 1382.5 KN m
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Would you expect the following species in a planar conformation to be aromatic, antiaromatic, or neither?
O antiaromatic O neither aromatic nor antiaromatic O aromatic
The species are arranged in such planar manner. neither antiaromatic nor aromatic
species definition
A species is a unit of biodiversity as well as the fundamental categorization and taxonomic rank of an organism in biology. The biggest collection of creatures in which any two persons of the right sexes or mating types may conceive a fertile child, typically by sexual reproduction, is referred to as a species. A species can also be identified by its karyotype, DNA sequence, anatomy, behaviour, or ecological habitat. In addition, since fossil reproduction cannot be studied, palaeontologists employ the chronospecies idea. There are approx 8 and 8.7 million different species of eukaryotes, based on the most current accurate estimate.
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2 psia is equivalent to
A. 29 in. Hg.
B. 28 in. Hg.
C. 27 in. Hg.
D. 26 in. Hg.
In order to determine absolute pressure, a complete vacuum is used. While the average atmospheric surface pressure is approximately 14.7 PSIA.
The pressure in a vessel absolutely devoid of any air molecules would be 0 PSIA. PSIA stands for absolute pounds per square inch. Absolute pressure is the pressure exerted with relation to absolute zero or vacuum. Engineering documents or P&IDs might employ PSIA. Pounds per square inch gauge is referred to as PSIG. PSIA is a word used to describe absolute pressure in PSI, which includes atmospheric pressure. "Total pressure" is another name for absolute pressure. We add 14.7 PSI since this atmospheric pressure is comparable to 14.7 PSI at sea level. Higher heights have lower atmospheric.
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The two blocks shown are originally at rest. Neglecting the masses of the pulleys and the effect of friction in the pulleys and between the blocks and the inclines, determine (a) the acceleration of each block, (b) the tension in the cable.
The acceleration of block A is 8.4949 and block B is 4.2475 ft/s² while the tension is the cable is 121.168 lb.
What is tension?When there are two forces acting on the ends of a cable, rope, wire, or string, it is said to be under tension. The cable has a one-direction pull along its entire length, pulling equally in both directions on objects at either end.
Tension can also be used to describe the forces that are acting on both ends of the two elements. In other words, tension's polar opposite is compression.
Physical objects must exert some force on one another in order to make contact with one another. Depending on the kind of object, each of these contact forces will be unique.
Take a section about the rope near block B and using the show datum
SB + (SB - SA) = l
2SB - SA = l
2SB - SA = 0
2aB - aA = 0
aA = 2aB
Take FBD of block-A
(Upward+) ∑Fₓ = mAaA
T - W[tex]_A[/tex]sin20° = mAaA
T - 200sin20° = (W[tex]_A[/tex]/g)(2aB)
T = 200sin20° + (W[tex]_A[/tex]/g)(2aB)
Take FBD of block-B;
(Downward+) ∑Fₓ = mBaB
W[tex]_B[/tex]cos20° - 2T = mAaA
300cos20° - 2(200sin20° + (W[tex]_A[/tex]/g)(2aB)) = (W[tex]_B[/tex]/g)(a[tex]_B[/tex])
300cos20° - 2(200sin20° + (200/32.2)(2aB)) = (300/32.2)(a[tex]_B[/tex])
a[tex]_B[/tex] = 4.2475 ft/s²
Acceleration of A is given as;
⇒ aA = 2aB
⇒ aA = 8.4949 ft/s²
Tension is given as;
T = 200sin20° + (200/32.2)(2(4.2475))
T = 121.168 lb
Thus, the acceleration of block A is 8.4949 and block B is 4.2475 ft/s² while the tension is the cable is 121.168 lb.
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