a metal tension specimen of initial diameter 0.505 inches fractures at a load of 5,000 lb with a fracture diameter of 0.325 inches. calculate the true stress at fracture

CNC machining equipment allows companies to manufacture complex parts with a user-friendly, single-setup machining process. This structure offers significant productivity advantages — cutting labor costs, increasing part quality, and reducing work time.

Answer:

To show that there is a return path for the current between the source of electrical energy and the load.

If the built-in ceiling lights and thermostat in your apartment are showing a ripple effect, this may indicate an issue with your electrical wiring or with the light fixtures and thermostat themselves.

If your built-in ceiling lights are showing a ripple effect and your thermostat is also affected, it could indicate a problem with the electrical wiring in your apartment. This could potentially be a fire hazard and should be addressed immediately.

Here are some steps you can take:

Therefore, , it is important to take any electrical issues in your apartment seriously and seek professional help to address them promptly.

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The given statement is false because Marin factors do not reduce the strength and stress concentrations factors do not increase the stress. Instead, they both reduce the safety factor.

Marin factor is a corrosion factor that takes into account the corrosion of the material of interest. When compared to the yield strength of the material, corrosion usually reduces the yield strength of the material. Because of this, the engineering process must consider the effect of corrosion on the material being used to ensure that it does not become so degraded that it fails prematurely. Hence, the Marin factor increases the safety factor and hence reduces the likelihood of failure.

When there is a change in section or a flaw in a structural member, stress concentration occurs. This is where the stress concentration factor is used. It is used to assess the effect of these conditions on the stress levels that result. The stress concentration factor increases the maximum stress that results in the presence of stress raisers. As a result, it reduces the safety factor and makes it more likely that the structural member will fail prematurely, unlike the Marin factor.

Therefore, the statement is false because the Marin factor reduces the stress and the stress concentration factor increases the stress, and they both reduce the safety factor instead of increasing it.

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The process of heating a metal after cold working to relieve internal stress and decrease dislocation density is known as annealing.

Annealing is a heat treatment process used to modify the physical and sometimes chemical properties of a material. It is typically used to induce ductility, soften material, improve machinability, and/or help improve cold working properties.

The annealing process requires a recrystallization temperature within a specified time before the cooling process is carried out. The cooling rate depends on the type of metal being annealed. For example, ferrous metals such as steel are usually cooled to room temperature in still air, while copper, silver, and brass are quenched slowly in air or rapidly cooled with water.

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Answer:

remain zero

Explanation:

in a steady flow process, the change of total energy of the control volume must remain zero.

In this case, the question is: "is represented by a set of / data fields / variables (also known as properties or attributes) with their current value. it is is called____"

The answer is: An object is represented by a set of data fields or variables (also known as properties or attributes) with their current value. It is called an object.

What is an object?

An object is an instance of a class in object-oriented programming. It is a software bundle of variables and related methods. An object is defined by its class, which determines its attributes (properties or variables) and methods (functions). An object is an instance of a class that has its own identity, state, and behavior.

The state of an object is represented by its attributes, while its behavior is represented by its methods. Therefore, an object is represented by a set of data fields or variables (also known as properties or attributes) with their current value, and it is called an object.

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To compare the power required to charge the phone to the average power the phone uses during the two days, we need to make some assumptions about the phone's battery capacity and power usage.

Let's assume that the phone has a battery capacity of 3000 mAh (milliampere-hour) and that its average power usage during the two days is 150 mA. We can use these assumptions to estimate the energy used by the phone during the two days and the energy required to charge the phone.

Energy used during two days = power x time

= 150 mA x 2 days x 24 hours/day

= 7200 mAh

Energy required to charge phone = battery capacity x charging efficiency

= 3000 mAh x 100% (assuming 100% charging efficiency)

= 3000 mAh

Now, we can compare the energy required to charge the phone to the energy used during the two days:

   Energy required to charge phone = 3000 mAh

   Energy used during two days = 7200 mAh

We can see that the energy used during the two days (7200 mAh) is more than twice the energy required to charge the phone (3000 mAh). This means that the average power usage of the phone during the two days (150 mA) is much lower than the power required to charge the phone (3000 mAh / 2 hours = 1500 mA).

Therefore, This makes sense because the phone's power usage is spread out over a longer period of time, whereas the power required to charge the phone is concentrated in a shorter period of time. Therefore, even though it takes 2 hours to charge the phone, the power required to charge the phone is much higher than the average power the phone uses during the two days of use.

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Decomposition is the process of breaking the Work Breakdown Structure (WBS) into smaller and smaller deliverables. This process is also sometimes referred to as value engineering or detailed specifications. By decomposing the WBS into smaller pieces, it becomes easier to assign tasks, assign costs, and plan out timelines.

The decomposition process begins by taking the major deliverables of the project and breaking them down into smaller tasks. From there, each task is further broken down into even more specific tasks. This process is repeated until all tasks have been broken down into their smallest components.

The purpose of decomposition is to create a well-defined scope of the project so that it can be managed in an efficient manner. It allows managers to easily identify the resources, cost, and timeline of each task, as well as provide a way to evaluate the progress of each task. It also allows for better control of the overall project.

Decomposition is a critical part of the project management process, as it ensures the project is organized and defined. This ultimately leads to an overall better result for the customer.

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The relationship between the concrete compressive strength and its flexural strength and splitting tensile strength is that; these strengths are interrelated and their values are dependent on one another.

The compressive strength of concrete is defined as the maximum compressive load that can be applied on a test specimen, to fail in compression. It is expressed in MPa or psi. It is one of the most important properties of concrete and is essential in designing a structure because it defines the concrete’s ability to resist compressive stresses.

A flexural strength test is performed on concrete to determine the strength of concrete in resisting bending stresses. In other words, the test determines the ability of the concrete to withstand bending stresses without cracking. A flexural strength test is important in the design of structural elements like beams, slabs, and other such components that are subjected to bending forces.

The splitting tensile strength of concrete is determined by applying a load on a cylindrical or cubical test specimen of concrete. It is the ability of the concrete to withstand tensile forces that tend to split or rupture the test specimen. It is an important property of concrete because it defines the concrete’s ability to resist tension and shear forces.

The relationship between these three strengths of concrete is that they are interrelated and their values are dependent on one another. In general, the compressive strength of concrete is higher than its flexural strength and splitting tensile strength. However, flexural strength and splitting tensile strength are important in determining the overall strength of concrete, and they are used in the design of structural elements like beams, slabs, and other such components.

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The Griffith equation is used to calculate the approximate amount of critical stress necessary to propagate a crack. The formula for the equation is K = √(πE/2Y), where E is Young's modulus, and Y is the geometrical factor, which depends on the shape of the crack.

The equation is based on the energy release rate for crack propagation and was developed by A.A. Griffith in 1921. The equation is used to calculate the stress intensity factor (K) for a crack in an elastic material.

The Griffith equation is important for engineers as it can be used to estimate how much stress a material can withstand before it will fracture. This is important when designing components or structures that will be subject to loading or fatigue. Additionally, the equation can be used to calculate the stress concentration factor (Kt) at a point of crack initiation.

In conclusion, the Griffith equation is an important equation used to calculate the approximate amount of critical stress necessary to propagate a crack. This equation can be used by engineers to ensure that their designs are able to withstand the expected loads, as well as calculate stress concentration factors.

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0.0075 inches should be the bare minimal separation between the shaft and the hole.

To guarantee correct fit and performance of the mechanical assembly, there should be 0.0075 inches of clearance between the hole and shaft.When designing mechanical assemblies, it's important to ensure that there is sufficient clearance between mating parts to avoid interference or binding. The minimum clearance between two parts can be calculated using the maximum material limits (MML) and minimum material limits (mml) of the hole and shaft dimensions.

In this case, the hole has a tolerance of 0.500 ± 0.005 inches, with an MML of 0.505 inches and an mml of 0.495 inches. The shaft has a tolerance of 0.495 ± 0.005 inches, with an MML of 0.500 inches and an mml of 0.490 inches.To determine the minimum clearance between the hole and shaft, we need to use the worst-case scenario, which is the largest hole diameter and the smallest shaft diameter. Therefore, the minimum clearance can be calculated as follows:Minimum clearance = (hole MML - shaft mml) / 2= (0.505 - 0.490) / 2= 0.0075 inches

Therefore, the minimum clearance between the hole and shaft should be 0.0075 inches to ensure proper fit and function of the mechanical assembly.

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Answer:A cookie

Explanation:To track interests.

Impact, ballistic, and creep ripples are all types of surface features that can occur on materials subjected to different types of stresses.

Impact ripples are formed when a material is struck by a projectile or another object. Ballistic ripples are similar but are specifically formed by high-velocity projectiles. Creep ripples, on the other hand, are formed when a material is subjected to a constant stress over a long period of time, causing it to slowly deform.

The length of these ripples relative to their heights can vary depending on the specific material and conditions. However, in general, the ripples tend to have a relatively short wavelength compared to their height.

In comparison, aerodynamic and hydrodynamic ripples are formed by the flow of air or water over a surface. These ripples tend to have a much longer wavelength compared to their height, with the length-to-height ratio typically ranging from several to tens of thousands. This is because the fluid flow over the surface is generally much smoother and less abrupt than the stresses that cause impact, ballistic, and creep ripples.

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To create a function named DD_PROJTOT_SF that determines the total pledge amount for a project, use the following HTML function:`CREATE FUNCTION DD_PROJTOT_SF(proj_id IN NUMBER)RETURN NUMBER IS total

NUMBER(14,2);BEGINSELECT SUM(amount) INTO total FROM pledge WHERE project_id = proj_id;IF total IS NULL THEN total := 0;END IF;RETURN total; END;`In an SQL statement that lists all projects, displaying project ID, project name, and project pledge total amount, use the following SQL statement:```

SELECT project. project_id, project_name, '$' || TO_CHAR(NVL(DD_PROJTOT_SF(project.project_id),0), '999,999,999,999.99') AS pledge_totalFROM project;```Note: NVL is used to replace the NULL value with 0 when the pledge amount is not available in the table.

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