By putting a material specimen through a compression or tension test, it is possible to determine the connection between stress and strain in a material.
By putting a material specimen through a compression or tension test, it is possible to determine the connection between stress and strain in a material. In this test, a test specimen is subjected to an axial force that increases gradually, and the deflection is recorded as the load rises. An illustration of this data might be a load-deflection curve. The test specimen's deflection is influenced by the specimen's geometry and elastic modulus of the material (area and length). It is helpful to generalize the data to eliminate the effect of geometry because we are interested in material behavior without regard to geometry.
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Erosional retreat of a ______ leads to enlargement and extension of a wave-cut platform in the inland direction.
A wave-cut platform grows and extends inland as a result of the erosional retreat of a wave-cut cliff.
A wave-cut platform, beach platform, coastal bench, or wave-cut cliff is the short flat area typically found at the base of a sea cliff or along the shoreline of a lake, bay, or sea that was produced by erosion. Wave-cut platforms are frequently most noticeable during low tide, when they are revealed as huge expanses of flat rock. The platform may occasionally have its landward side covered by sand, creating a beach, and then become invisible unless during low tides or storms when the sand is moved.
Wave-cut platforms are created when damaging waves strike the cliff face and create an undercut between the high and low water marks. This undercut is primarily caused by abrasion, corrosion, and hydraulic action, which results in a wave-cut notch.
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an open-delta three-phase transformer system has one transformer center-tapped to provide a neutral for single-phase voltages. if the voltage from line to center tap is 277 v, what is the high-leg voltage? if a single-phase load is connected across the two line conductors and neutral of the transformer above and one line has a current of 80 a and the other line has a current of 68 a, how much current is flowing in the neutral conductor?
480 V is the high-leg voltage. 12 A of current is passing through the neutral conductor.
What's current ?
In a full electrical circuit, current refers to the speed at which electrons move past a certain point. Current = flow, at its most fundamental level. The international unit for measuring current is an ampere (AM-pir), sometimes known as an amp. It describes how many electrons (sometimes referred to as "electrical charge") travel past a certain point within a circuit over a specified period of time. In a circuit, a current of 1 ampere corresponds to the movement of 1 coulomb of electrons, or 6.24 billions billion (6.24 x 1018) electrons, through a single location in a second.
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In a practical machine the power output is less than the power input considering the law of energy conservation what can explain this occurrence.
An ac voltmeter is to be used to measure the rms voltage across the 15kOhm resistor in the circuit shown in Figure 7. If the voltmeter uses half-wave rectification and a 100µA of D'Arsonval meter movement, if it is set on its 10V range, and if Rm-1.5k, what reading will be obtained. Given V=20Vrms, R¹=25kOhm, R²= 15kOhm
Answer: the solution is in the photo below
Explanation:
which indoor pollutant is commonly used in building materials, carpet backing, furniture, foam insulation, plywood, and particle board? a. radon b. asbestos c. formaldehyde d. polyethylene terephthalate (pet) e. polycarbonate plastic
The indoor pollutant formaldehyde is frequently found in furniture, foam insulation, carpet backing, plywood, and particle board.
Some household products, including carpet, particleboard, draperies, wallpaper, furniture fabrics, glues and adhesives, tobacco smoke, some personal care items, and some foam insulation, release formaldehyde. The symptoms of carbon monoxide exposure are brought on by methylene chloride, which the body converts to carbon monoxide. Particle board, plywood, foam insulation, carpet backing, and furniture are all frequently found in building supplies. The burning of leaded fuel and metal processing are the two main sources. Once ingested, lead can build up in the body and have a variety of negative effects. Adults who are exposed to high levels of lead may experience problems with their nervous, cardiovascular, or reproductive systems. Your brand-new carpet or cabinet may be poisoning you subtly with benzene, ethylene glycol, or formaldehyde.
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technician a says that a spiral cell (optima battery) is not considered a sealed lead-acid (sla) battery. technician b says that an absorbed glass mat (agm) battery is not considered a sla battery. who is correct?
Neither technicians A and B are correct. All kinds of optima cells need a sealed lead-acid battery. Meanwhile, an absorbed glass mat (AGM) battery is considered an SLA battery.
All kind of optime batteries are SLA AGM batteries, very resistant to vibrations and ready to operate in any position. Each of Optima's six cells uses AGM plates to keep the acid in place. These are wound into precisely compressed spiral cells and inserted into the case. Sealed Lead Acid (SLA) and Valve Regulated Lead Acid (VRLA) are two different abbreviations for the similar cell. Absorbed Glass Mat (AGM) refers to a shape of SLA/VRLA in which the electrolytes are soaked into dividers throughout plates made out of sponge-like thin glass fibretion matting.
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technician a says that fiber gaskets are the best and most commonly used gaskets in modern diesel engines. technician b says that mls gaskets are the most commonly used head gaskets. who is correct?
Technician b is correct Because he says the most widely used head gaskets are mls gaskets, accordingly.
A gasket is a mechanical seal that fills the gap between two or more mating surfaces, usually to stop leakage into or out of the joined objects while they are compressed. A method akin to papermaking is used to create fiber gasket material. Spread out fiber strands are impregnated with a resin substance. As it dries, it forms sheets that can be easily shaped-cut. Gaskets with varying strengths, compressibilities, and temperature ratings are made using a wide variety of fiber types. An O-ring or washer, also referred to as a gasket, closes the space between two surfaces. According to their intended use, these items are typically made of rubber and come in a variety of sizes and shapes. Flat gaskets are the most prevalent kind of gasket.
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a cylindrical specimen of cold-worked copper has a ductility (%el) of 25%. if its cold-worked radius is 10 mm (0.40 in.), what was its radius before deformation?
The cylinder's radius before distortion is 7.5mm.
Deformity of a thing:-We learn that from the question that was asked;
The cylinder's cold work radius is 10mm.
Difficulty = 25%
Identify the radius prior to distortion.
Radius prior to deformation: (1-0.5) + 10
Radius before distortion equals 0.75 x 10
Radius = 7.5mm before deformation
Consequently, the cylinder's radius before distortion is 7.5 mm.
What do you mean by radius?The radius of a circle is the distance a circle's center from any point along its perimeter. Usually, "R" or "r" is used to indicate it. In practically all formulas involving circles, this amount is significant. In terms of radius, a circle's area and circumference are also calculated.
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two technicians are discussing a vehicle with oil found in the air cleaner. technician a says that excessive blow-by could be the cause. technician b says that a kinked pcv valve hose could be the cause. who is correct?
The technicians are both accurate. Wearing valve guides or piston rings may result in excessive blow-by, and a crimped PCV valve hose may let oil into the air cleaner.
What is a piston?
Among other related systems, pistons are found in reciprocating engines, revolving pumps, gas compressor, hydraulic cylinders, and pneumatic cylinders. It is the bevel gear that is enclosed in a cylinder and sealed off from the gas by piston rings. Its function in an engine is to use a piston rod and/or connection rod to transmit force from the expanding gas within the cylinder to the crankshaft.
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rq 11-7. explain the difference between the view and the modify functions in the storage and access model of configuration management. g
The "view" function is the retrieval of an artifact for the goal of analyzing the artifact and can be completed by all at all times. The "modify" function is the retrieval of an artifact with the goal of creating modifications to the artifact. Thus, in the case of modification, only those authorized must be allowed to carry out the characteristic. In addition, to prevent conflicts, while an artifact X is retrieved for modification, that X is locked from a different modify function until it is returned. X may still be regarded by others.
View and modify is one of the most feature that you can be find in storage. View makes you can see what content you need to view for. Meanwhile, modify is the feature that allows you to change or make modification on your content.
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hydraulic systems utilize pascal's principle by transmitting pressure from one cylinder (called the primary) to another (called the secondary). a certain hydraulic system is designed to exert a force 95 times as large as the one put into it. show answer no attempt 33% part (a) what must be the ratio of the area of the secondary cylinder to that of the primary cylinder?
The ratio of the area of the secondary cylinder to the area of the primary cylinder must be 95:1 .
What is ratio ?
A ratio in mathematics demonstrates how many occasions one number is present in another. For instance, if a dish of fruit contains eight oranges and six lemons, the ratio of orange to lemons is 8 to 6 (that is, 8:6, which is equivalent to the ratio 4:3). The ratio of oranges to the overall amount of fruit is 8:14, and the ratio for lemons to oranges is 6:8 (or 3:4). (or 4:7). A ratio can have any number of quantities, such as count of people or things or measurements of length, weight, time, etc. Both numbers must be positive in most situations.
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Some analysts believe that the exclusion of some traditional partners from the "democratic camp" by the United States will deepen the gap between the two sides; the invitation of some countries or regions suspected of "democratic retrogression" will affect the "credibility" of the summit.
The exclusion of some traditional partners from the "democratic camp" by the United States will undoubtedly deepen the gap between the two sides.
About summit :
This move by the US is seen as a sign of its dissatisfaction with the policies and behavior of these countries. In addition, the invitation of some countries or regions suspected of "democratic retrogression" may lead to further erosion of the credibility of the summit in the eyes of the invited countries, as well as the international community. At the same time, it is worth noting that the United States must consider the consequences of such actions and the possible damage to its international image. If the US is seen as selectively choosing partners, it may undermine its overall influence in the world.
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Can someone solve this please
i cant solve this but good question
a recent engineering graduate designs a small steel structure for a client using educational structural design software leftover from college. he later learns that the software gives accurate stress analysis for tension, but does not properly predict buckling of columns in compression. he purchases the professional version and a revised analysis shows that the building is not as safe as first believed. a large snowfall would create a static load that could cause the supporting columns to buckle and the building to collapse. the probability of this snowfall occurring is once every 10 years. what should the engineer do?
In order to make the structure safe in the case of a significant snowfall, the engineer should warn the customer of the hazards associated with the design and suggest that it be strengthened or rebuilt. The engineer should also advise the client to think about acquiring more reliable structural design tools for future projects.
What is software?
Software is a group of computer programmes, along with related documentation and data. The system, which carries out the work, has been constructed. Executable code is the lowest level of programming, and it consists of machine instructions that are supported by a single processor, usually a central processing unit (CPU) or (GPU).
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a 02-series deep-groove ball bearing is considered as an application with the inner ring rotating, with a design life of 25 kh at a speed of 350 rev/min. the radial load is 2.5 kn and an application factor of 1.2 is appropriate. the reliability goal is 0.90. find the catalog rating c10 with which to enter a bearing table and select an appropriate size bearing.
In this case, the C10 catalogue rating would be 14.
How does bearing work?
A bearing is a component of a machine that limits relative movement to only that motion that is intended and lessens friction between moving elements. The bearing's design may, for instance, permit rotation around a fixed axis or free linear motion of the moving part. It may also serve to prohibit motion by managing the vectors of normal forces acting on the moving parts. Most bearings reduce friction in order to enable the desired motion. According to the sort of operation, the motions permitted, or the direction of the loads (forces) supplied to the parts, bearings can be widely categorized.
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a neural network using a perceptron to distinguish between apples and oranges, based on three sensor measurements (shape, texture and weight). now you are to design a perceptron to distinguish between bananas and pineapples:
Neural networks are a collection of algorithms that mimic the functioning of an animal brain in order to connect vast amounts of data.
A neural network is a set of algorithms that mimics how the human brain works in order to find hidden connections in a piece of data. Neural networks are systems of neurons that can have an organic or artificial origin in this context.
Since neural networks are capable of adapting to changing input, they can produce the optimal results without having to change the output criterion. The artificial intelligence-based idea of neural networks is quickly gaining favor in the design of trading systems.
Neural networks are a collection of algorithms that mimic the functioning of an animal brain in order to connect vast amounts of data.
As a result, they frequently mimic the synapses and connections between neurons in the brain.
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The variable planet_distances is associated with a dictionary that maps planet names to planetary distances from the sun. Write a statement that deletes the entry for the planet name "Pluto".
In Python
A statement that deletes the entry for the planet name "Pluto" is given as del planet_distances["Pluto"].
What is variable?A variable in programming is a value that is subject to change based on external factors or input. Typically, a program is made up of data that the program uses while it is running and instructions that tell the computer what to do.
Constants or fixed values that never change make up the data, while variables (whose initial values are typically set to "0" or some other default value because the program's user will supply the actual values) are also present. In most cases, certain data types are used to define both constants and variables.
The form of the data is dictated by and constrained by each data type. Examples of data types include a decimal representation of an integer or a string of text characters that is typically constrained in length.
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Explain on a structural basis the differences in the glass transition temperature of polyethylene ( =-140°C), polyvinylchloride (T-87 C), and polysityrene (Tg= 100 c)
The "glass transition" temperature is the point at which it happens. For instance, low-density polyethylene has a glass transition temperature, or Tg, of about 100°C.
He claims that the fact that the Tg of PVC/CF composite is higher (86.7 °C) than the Tg of pure PVC (76.8 °C) suggests that there is a physical contact between the polymer and the CF surface, which reduces chain mobility and free volume and increases Tg. Pressure and free volume. Increased surrounding pressure causes a decrease in free volume, which ultimately results in increased Tg. The glass transition temperature of polymers is also significantly influenced by other elements such as branching, alkyl chain length, bond interaction, flexibility of the polymer chain, film thickness, etc.
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The reading on the 0 to 25 mm micrometer provided is
A. 15.20
B. 15.70
C. 15.45
D. 0.1520
Based on the image attached, the reading of micrometer is= 15.20.
What do the numbers on a micrometer represent?You will see a line of numbers running down the barrel of your micrometer, starting with the barrel scale. On the barrel scale, each number corresponds to 0.100. Looking at the barrel, 1 equals 0.100, 2 equals 0.200, 3 equals 300, and so on. The distance between each tick mark and the larger numbers on the barrel is 0.025, or 25 thousandths.
Note that micrometer is one that is also referred to as a micrometer screw gauge—is a tool with a calibrated screw that is frequently used for precise measurement of components in mechanical engineering, and others.
Looking at the image, you will see the stop ends at 15 and and 20 so adding them together will be option A. 15.20.
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g florida international university pedestrian bridge collapse capacity, the ability of the material/structure to safely resist load without breaking or damage, depends on?
The ability of the material/structure to safely resist load without breaking or damage, depends on Ductility.
What is Ductility?A material's ability to be drawn from is known as its ductility, a mechanical property (e.g. into wire). The amount of plastic deformation under tensile stress that a material can withstand before failing is known as ductility in the field of materials science. Engineering and manufacturing both place a high priority on ductility.
It specifies a substance's suitability for particular manufacturing processes (like cold working) and its ability to withstand mechanical overload. Copper and gold are a couple of the metals that are typically referred to as ductile. All metals, however, do not necessarily fail ductilely; some, like cast iron, can fail brittlely. Because they typically permit plastic deformation, polymers can be thought of as ductile materials.
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assume a natural convection heat transfer on a vertical flat plate surrounded by a fluid. where will be the fully developed turbulent layer of fluid established, if the plate is hotter than the fluid?
A vertical flat plate with a fluid-enclosed natural convection heat transfer The fully developed turbulent layer of fluid will be established at the top of the plate if the plate is hotter than the fluid.
Thermal engineering's field of study known as "heat transfer" deals with the production, use, conversion, and exchange of thermal energy across physical systems. The classification of heat transmission into different methods includes thermal conduction, thermal convection, thermal radiation, and energy transfer through phase changes. When you hold a hot cup of coffee, heat is transferred into your hands by conduction. Heat is transferred by convection while the barista "steams" cold milk to produce hot chocolate. Microwave-assisted rewarming of a cold cup of coffee. Radiation, convection, and conduction are the three methods through which heat may be moved. The direct transmission of energy from one molecule to another is known as conduction. In many fields, including automotive engineering and the thermal management of electronic devices and systems, heat transfer techniques are applied.
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A pressure gauge that can be modeled as an LTI system has a time response to a unit step input given by y(t) = (1 - e^-t -te^-t)u(t). From the step response determine the transfer function. For an unknown input x(t), the output is observed was y(t) = (2 - 3e^-t + e^-3t)u(t). From this observed measurement, determine the true pressure x(t) that was applied to the gauge.
A pressure gauge that can be modeled as an laplace transform system has a time response (2+4e^-3t)4t is the input x(t), the output is observed was y(t) = (2 - 3e^-t + e^-3t)u(t)
Response to unit step for a pressure gauge= (1 - e^-t -te^-t)u(t).
Taking laplace transform
Y(s)=1/1/s+1-1/(s+1)²
Y(s)=1/s(s+1)²
Input = U(t) so X(s)=1/s
Transfer function of system Y(s)/x(s)
H(s)=Y(s)/X(s)=1/s(s+1)²/1/s=1/(s+1)²
Y(s)=2/s-3/s+1+1/s+3
=6/s(s+1)(s+3)
X2(s)=2/s+4/s+3
X2(t)=(2+4e^-3t)4t
The Laplace transform is an integral transformation that turns a given derivative function with a real variable (t) into a complex function with a variable (s). Assuming f(t) satisfies a set of later-explained conditions, let's say it is given for t 0.
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explain why a prefabricated steel stair is most commonly used even in buildings that are built with a reinforced concrete frame structure.
Steel can support a lot of weight and is nearly five times as robust as concrete. A steel staircase may be constructed with a lot less material than a concrete one and is stronger than a concrete one.
Concrete has a high compression strength, which means it can withstand being forced together with force. The most common material used to build a stairway is concrete because of its exceptional ability to be shaped into any complex design. Timber will always be susceptible to damage from the elements and wood-eating insects, regardless of how much chemical treatment it receives. Rain and snow can quickly deteriorate a wooden staircase if it is outside.
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technician a says that when using plastigauge, plastigauge that becomes wider indicates a smaller oil clearance between a crankshaft and main bearing. technician b says the plastigauge will become narrower when bearing oil clearances are smaller. who is correct?
Each Tech is correct. The clearance between the crankshaft and X and Y on the bearing is measured using plactigage, according to Tech A, while the clearance is measured using a dial indicator, according to Tech B.
A thin calibrated plastic strip serves as a plastic gauge. It can be used to measure gaps and monitor bearing clearance. It is utilized at locations on crank or connecting rod bearings where a micrometer measurement cannot be made quickly. You must use cylinder liner shims or a bigger flange height cylinder liner to increase the protrusion height if the new cylinder liner falls short of the engine manufacturer's specifications.
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a fiber optic cable consists of four basic components. using the illustration below, match each illustration label on the left with the correct component name on the right.
The five primary parts of a fiber optic cable are the core, cladding, coating, reinforcing fibers, and cable jacket.
The five primary parts of a fiber optic cable are the core, cladding, coating, reinforcing fibers, and cable jacket. While copper wire of the same length is more expensive than fiber optic cable, fiber optic cable connectors and the tools required to install them are often more expensive. However, during the past few years, optical fiber has grown more cost-competitive due to a greater emphasis on preserving digital information.
Integrators should be familiar with fiber optic cable since it can accommodate the changing demands of government AV/IT end users. Here is a glimpse at a fiber optic cable's structure.
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the programming practice is centered on creating objects. question 8 options: object-centric procedural object-oriented objective
The practice of procedural programming is centered on the creation of objects. Procedures are simply a set of computational steps that must be followed.
What is procedural programming ?Procedural programming is a programming paradigm derived from imperative programming that is based on the procedure call concept. Procedures are simply a set of computational steps that must be followed.Some of the most common types of programming languages used by script and software developers are procedural languages. They write programmes that use functions, conditional statements, and variables to allow a computer to calculate and display a desired output.Event-driven programming is another programming paradigm with which procedural programming can be contrasted. In this approach, procedures are only called/executed in response to events such as mouse clicks, keyboard presses, attaching or removing a device, receiving data from an external source, and so on.To learn more about procedural programming refer :
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the most desirable form of integrated waste management is: a. recycling. b. source reduction. c. reuse. d. combustion.
Answer: C
Explanation:
The most desirable form of integrated waste management is source reduction. The correct option is b.
What is waste management?
The method a company employs to dispose of, reduce, reuse, and prevent trash is known as a waste management system.
Recycling, composting, incineration, landfills, bioremediation, waste to energy, and waste minimization are a few potential waste disposal techniques.
These services have the potential to save your company a sizable sum of money while simultaneously protecting the environment.
The elimination of trash before it is formed is known as source reduction, commonly referred to as waste prevention or pollution prevention.
In order to lessen the quantity or toxicity of what is thrown away, materials and products must be designed, manufactured, bought, or used. Stopping waste at the source implies preventing it from occurring.
Thus, the correct option is b.
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The time complexity for searching an element in a binary search tree is a. O(n) b. O(log n) c, 0(n log n) d, 0(#2) 20. The time complexity for inserting an element into a binary search tree is a. O(n) b. O(log n) c. O(n log n) d, 0(#2)
The time complexity for searching and inserting an element in a binary search tree is O(n). Thus, for both questions option, 'A' holds the correct answer.
A binary search tree is a node-based data structure that has the following properties: the left subtree of a node has only nodes with keys lesser than the node’s key; the right subtree of a node has only nodes with keys greater than the node’s key; the right and left subtree each must also be a binary search tree. The major three operations to be performed on a binary search tree are searching, inserting, and deleting an element. The time complexity for all these operations is O(n). Since, searching, inserting, and deleting an element in a binary search tree requires traversing all elements, giving the worst-case time complexity of O(n).
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What is a branch interval? Select one: A. Secondary drain of the waste water drainage system within a building B. A vent branch through the roof of a building C. Total length of pipe measured along the centerline of the pipe D. Section of soil or waste stack corresponding to one story in height
Section of soil or waste stack corresponding to one story in height is branch interval.
What is a branch interval ?A branch interval is a distance along a soil or waste stack that corresponds to a story height, but not less than 8 feet, within the horizontal branches that connect one floor or story of a structure to the stack.Determine the number of fixture units discharging into the stack first when sizing the stack for three branch intervals. The stack must be as large as the largest connecting branch. Determine the number of fixture units that are discharging into the stack next. Calculate the number of fixture units that discharge into each branch interval. The stack must be as large as the largest connecting branch.To learn more about branch interval refer :
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The following is NOT a metric value.
a. Decimeter.
b. Octimeter.
c. Millimeter.
d. Meter.
Answer:
b. Octimeter
Explanation:
no such measurement/value.