Suppose that a wing component on an aircraft is fabricated from an aluminum alloy that has a plane strain fracture toughness of 27 MPa (24.57 ksi). It has been determined that fracture results at a stress of 108 MPa (15660 psi) when the maximum internal crack length is 9.4 mm (0.3701 in.). For this same component and alloy, compute the stress level at which fracture will occur for a critical internal crack length of 5.8 mm (0.2283 in.).

Answer:

the elevation of the water surface over the obstruction is highest at 1.341 m

the maximum height of the obstruction h = 0.159 m

Explanation:

From the given information:

The diagrammatic expression for the water profile showing a rectangular channel  with 3 cm width carrying a 4 m3/s of water at a depth of 1.5 m with an obstruction 15 cm high is placed across the channel can be seen in the diagram attached below.

To calculate the elevation of the water surface over the obstruction, we need to  determine the following:

a. the velocity of the channel

b. the froude number at the upstream of the obstruction

c. the specific energy level

To start with the velocity V of the channel.

\(V_1 = \dfrac{Q}{A} \\ \\ V_1 = \dfrac{4 \ m^3/s}{(3 \times 1.5 ) m^2 } \\ \\ V_1 = \dfrac{4 \ m^3/s}{4.5 \ m^2}\)

\(V_1 = 0.88 \ m/sec\)

The froude number  at the upstream of the obstruction

\(F _{\zeta} = \dfrac{V_1}{\sqrt{gy__1}}\)

\(F _{\zeta} = \dfrac{0.88}{\sqrt{9.81 \times 1.5}}\)

\(F _{\zeta} = \dfrac{0.88}{\sqrt{14.715}}\)

\(F _{\zeta} = \dfrac{0.88}{3.836}\)

\(F _{\zeta} =0.229\)

\(F _{\zeta} \simeq0.3\)  which is less than the subcritical flow.

Similarly, the specific energy level for this process can be expressed as:

\(E_1 = \dfrac{V_1^2}{2g}+y_1\)

\(E_1 = \dfrac{0.88^2}{2 \times 9.81 }+1.5\)

\(E_1 = \dfrac{0.7744}{19.62 }+1.5\)

\(E_1 =0.039469+1.5\)

\(E_1 =1.539469\)

\(E_1 \simeq1.54 \ m\)

\(E_2 + \Delta z = E_1\)

\(E_2= E_1 - \Delta z\)

\(E_2= (1.54 - 0.15) \ m\)

\(E_2=1.39 \ m\)

Suppose ;

\(V_1 y_1 = V_2y_2\\ \\ Then; \ making \ V_2 \ the \ subject \ of \ the \formula\ we \ have: \\ \\ \\V_2 = \dfrac{V_1 y_1}{y_2} ---- (1)\)

From the energy equation:

\(E_2 + \Delta z = E_1\)

we can now substitute the above derived parameter and have :

\(E_2 + \Delta z=y_1 + \dfrac{V_1^2}{2g}\)

\(E_2 =y_1 + \dfrac{V_1^2}{2g} - \Delta z\)

\(E_2 =y_2 + \dfrac{V_2^2}{2g}\)

replace the value of \(V_2\) =\(\dfrac{V_1 y_1}{y_2}\)  in equation (1), we have:

\(E_2 =y_2 + \dfrac{( \dfrac{V_1y_1}{y_2})^2}{2g}\)

\(E_2 =y_2 + \dfrac{ {V_1^2y_1^2}}{2gy_2^2}\)

\(E_2 \times y_2^2 =y^3_2 + \dfrac{ {V_1^2y_1^2}}{2g}\)

\(y^3_2 - E_2y^2_2 + \dfrac{V_1^2y_1^2}{2g}=0\)

Replacing our values now; we have:

\(y^3_2 - 1.39 \times y^2_2 + \dfrac{0.88^2 \times 1.5^2}{2 \times 9.81}=0\)

\(y^3_2 - 1.39 \times y^2_2 + \dfrac{1.7424}{19.62}=0\)

\(y^3_2 - 1.39 \times y^2_2 + 0.0888=0\)

\(y^3_2 - 1.39 y^2_2 + 0.0888=0\)

\(y_2 = 1.341 \ m \\ \\ y_2 = - 0.232 \ m \\ \\ y_2 = 0.281 \ m\)

Therefore,the elevation of the water surface over the obstruction is highest at 1.341 m

What is the maximum height of the obstruction that will not cause a rise in the water surface upstream

In order to determine the maximum height , we need to first estimate the rise in water level surface of \(\Delta z\)

\(\Delta z\) = 1.5 - (1.341+ 0.15) m

\(\Delta z\) =  (1.5 - 1.491) m

\(\Delta z\) = 0.009 m

Finally, the maximum height of the obstruction h = (0.009 + 0.15 )m

the maximum height of the obstruction h = 0.159 m

Answer:

Dam they be thinking we racist

Explanation:

Answer:

XDDDD

Explanation:

XD I LOVE THIS MEME IM SAVING THIS TO MY GALLERY XD

The logical point where different software entities communicate is known as a public interface in computer science.

To learn more about public interface refer

https://brainly.com/question/14999753

#SPJ4

The variation of temperature in the wall is T(x)= (q_0x) /(kL) + T_0. The heat flux q_n is -28.1 W/m^2 and the temperature of the left surface of the wall is T_0 = 300 degree C.

B. To obtain the variation of temperature in the wall, we need to use the heat conduction equation, which states that the rate of heat flow through a solid is proportional to the temperature gradient.

The equation is given by q_x = -kdT/dx. Since we know the heat flux q_0 at the left surface, we can integrate this equation from x = 0 to x = L to obtain the temperature distribution T(x) in terms of q_0 and the thermal conductivity k.

On the right surface, we can use the equation for heat transfer by convection and radiation, which is given by

q_n = h(T_6 - T_surrounding) + esigma(T_6^4 - T_surrounding^4)

where h is the convection heat transfer coefficient, e is the emissivity, sigma is the Stefan-Boltzmann constant, T_6 is the surface temperature and T_surrounding is the surrounding temperature.

Plugging in the given values we can find out the value of heat flux q_n and the temperature of the left surface of the wall (at x = 0).

For more questions like Temperature variation click the link below:

https://brainly.com/question/27744030

#SPJ4

When technician a says it is important that a full battery test series be done before trying to test the starter system, and technician b says the internal condition of the engine has little effect on the operation of the starting system, then only technician a is correct.

Ideally, before testing the starter system, full battery test series is to be completed. The reason for this is that both the performance of starter and battery system is so closely related.

And it should also be replaced if it fails the load test. The operation of the starting system will be influenced by the internal condition of the engine.

Therefore, technician a is right.

Learn more about battery test series here:

https://brainly.com/question/26538111

#SPJ4

The aluminum sphere, initially at 85°C, is placed in an air stream at 27°C flowing at 20 m/s. It takes a certain amount of time for the sphere to cool down to 40°C.

The cooling of the aluminum sphere can be analyzed using the principles of convective heat transfer. As the sphere is exposed to the cooler air stream, heat will be transferred from the sphere to the surrounding air through convection. The rate of heat transfer can be determined using the equation for convective heat transfer: Q = h * A * ΔT Where Q is the rate of heat transfer, h is the convective heat transfer coefficient, A is the surface area of the sphere, and ΔT is the temperature difference between the sphere and the air. The convective heat transfer coefficient depends on various factors such as the air velocity, properties of the fluid, and surface characteristics of the sphere. In this case, we are given that the air is flowing at 20 m/s and at 1 atm. These conditions can be used to calculate the convective heat transfer coefficient for the specific situation.

Once the convective heat transfer coefficient is determined, we can calculate the rate of heat transfer and use it to find the time required for the sphere to cool down from 85°C to 40°C. This time can be calculated by dividing the change in temperature by the rate of heat transfer. It is important to note that this calculation assumes steady-state conditions and neglects other modes of heat transfer such as conduction and radiation. Additionally, the specific properties of the aluminum sphere, such as its thermal conductivity and specific heat, would also affect the cooling process.

Learn more about conduction here-

https://brainly.com/question/31201773

#SPJ11

You can help prevent flashbacks, flames, and explosions during welding by doing the following:

According to the AWS, there are 4 primary welding joint types that are regularly utilized in the industry:

SMAW stands for Shielded Metal Arc Welding. Shielded metal arc welding, often known as stick welding, is a very prevalent and popular welding technique.

It is commonly used in construction, steel fabrication, pipeline work, and heavy equipment repair.

Learn more about welding:
https://brainly.com/question/9450571

#SPJ1

Answer:

modulus =3.97X10^6 Ib/in^2, Poisson's ratio = 0.048

Explanation:

For individuals with a high power need, groups can be a vehicle for asserting dominance and exerting control.

Individuals with a high power need often seek opportunities to assert their authority and influence over others. They thrive on having control and may actively seek out positions of power within groups. Groups provide a platform for individuals to exercise their power and influence over others, as they can establish hierarchical structures, set rules and norms, and make decisions that impact the group members.

Within a group, individuals with a high power need may engage in behaviors such as taking charge, directing others, and making decisions without much consultation. They may strive to be the dominant voice and ensure their opinions and preferences prevail.

Learn more about high power here: brainly.com/question/28931937

#SPJ11

Answer:

if user_tickets == 7:

  award_points = 1

else:

  award_points = user_tickets

Explanation:

Not sure what language you are using. But this can be used for python. Also don't know if you are required to ask the user for any input

Answer:0.00023

Explanation:

Trust me

The force (lb) required to fu compress the spring is most nearly 71.

To find the force required to fully compress the spring, we can use the formula for the spring force:
F = kx
where F is the force applied, k is the spring constant, and x is the displacement from the free length.
First, let's find the mean diameter of the spring:
d = 0.1055 in.
The mean diameter is the average of the wire diameter and the diameter of the coil, so:
mean diameter = d + 10/3 * d = 1.485 in.
Next, let's find the spring constant:
k = 20 lb/in.
Finally, let's find the displacement from the free length when the spring is fully compressed:
total length of spring = 3 in. + 10 coils * mean diameter = 18.85 in.
fully compressed length of spring = total length of spring - 10 coils * wire diameter = 15.39 in.
displacement from free length = 3 in. - 15.39 in. = -12.39 in.
Note that the negative sign indicates that the displacement is in the opposite direction of the spring's natural length.
Now we can use the formula for spring force to find the force required to fully compress the spring:
F = kx = 20 lb/in. * (-12.39 in.) = -247.8 lb.
The negative sign indicates that the force is in the opposite direction of the applied force, so the actual force required to compress the spring is:
F = |-247.8 lb.| = 247.8 lb.

Learn more about force here:

https://brainly.com/question/26115859

#SPJ11

Answer:

A

Explanation:

Answer: To initialize an ArrayList called inventory that stores Car objects in Java, you can use the following code:

import java.util.ArrayList;

public class CarTracker

{

   public static void main(String[] args)

   {

       // Initialize your ArrayList here:

       ArrayList<Car> inventory = new ArrayList<>();

   }

}

The ArrayList is initialized using the ArrayList<Car> syntax, where Car is the type of objects that will be stored in the ArrayList. The ArrayList is then instantiated using the new ArrayList<>() syntax. You can then add Car objects to the ArrayList using the add method. For example, the following code adds a Car object with the name "Ford", model "Fiesta", and cost $15,000 to the inventory ArrayList:

// Add a Car object to the inventory ArrayList

Car car1 = new Car("Ford", "Fiesta", 15000);

inventory.add(car1);

You can add as many Car objects to the inventory ArrayList as you need. To retrieve a Car object from the ArrayList, you can use the get method and specify the index of the Car object you want to retrieve. For example, the following code retrieves the first Car object in the inventory ArrayList:

// Get the first Car object in the inventory ArrayList

Car car = inventory.get(0);

You can then access the fields of the Car object using the dot notation, as shown in the following code:

// Print the name, model, and cost of the Car object

System.out.println("Name: " + car.name);

System.out.println("Model: " + car.model);

System.out.println("Cost: $" + car.cost);

This code would output the name, model, and cost of the Car object.

Time-series data and cross-sectional data are two distinct types of data used in statistical analysis. Here's an explanation of each type and an example of how they can be used:

Time-series data:

Time-series data refers to a sequence of observations collected over regular intervals of time. In time-series data, the variable(s) of interest are measured and recorded at different points in time. This type of data allows for the analysis of trends, patterns, and relationships that evolve over time.

Example: Let's say you have collected daily temperature readings for a particular city over the past year. Each observation includes the date and the corresponding temperature. You can use this time-series data to analyze seasonal patterns, identify temperature trends, or forecast future temperatures.

Cross-sectional data:

Cross-sectional data, also known as snapshot data, represents observations taken at a particular point in time. In cross-sectional data, the variable(s) of interest are measured for multiple individuals, entities, or objects simultaneously. This type of data allows for comparisons and analysis across different groups or categories.

Example: Suppose you want to study the average income levels across various professions in a particular city. You collect data by surveying individuals from different professions within the city. Each observation includes the profession and the corresponding income. By analyzing this cross-sectional data, you can compare the income levels between different professions and identify any disparities.

In summary, time-series data focuses on changes over time, while cross-sectional data focuses on comparisons across different groups or categories at a specific point in time. Both types of data provide valuable insights into different aspects of statistical analysis and can be used to answer various research questions.

Answer:

it's not included

Explanation:

plz exact ur explain

Answer:

si amor

Explanation:

Hoiykñjdnlklbutrk

Answer:Properties of ROC of Laplace Transform If x(t) is absolutely integral and it is of finite duration, then ROC is entire s-plane. If x(t) is a right sided sequence then ROC : Re{s} > o. If x(t) is a left sided sequence then ROC : Re{s} < o. If x(t) is a two sided sequence then ROC is the combination of two regions.

Explanation:

Given function is xt= detal(t)+u(t)We know that Laplace transform of `u(t)` is `1/s` and Laplace transform of `delta(t)` is 1.To find the Laplace transform of xt we will apply the linearity property of Laplace transform.Laplace transform of xt=L{delta(t)} + L{u(t)}Using Laplace transform of delta(t) and u(t),

we get; Laplace transform of xt = 1 + 1/sSo the Laplace transform of xt is `1 + 1/s`.The region of convergence (ROC) is given by Re[s] > -a where ‘a’ is a constant.The pole zero plot is given below:

Explanation:The region of convergence (ROC) is given by Re[s] > -a where ‘a’ is a constant.The pole zero plot is given below:Therefore, the Laplace transform and the associated region of convergence and pole zero plot for xt = delta(t) + u(t) are given as follows;

Laplace Transform = 1 + 1/sRegion of convergence: Re[s] > 0Pole-zero plot is shown above.

To know more about Laplace transform visit:

https://brainly.com/question/30759963

#SPJ11

The tatal resistance of the series-parallel circuit with two resistor connected in parallel which combination is connected in series to a single resistor is 9 ohms.

This can be defined as the opposition to current flow in a circuit.

To calculate the total resistance, first we need to find the total resistance of the parallel resistor.

For parallel,

Where:

R' = Total resistance of the parallel resistor.

From the question,

Given:

Substitute these values into equation 1

Finally, we combine the effective parallel resistance in series to the single resistance to the the total resistance of the circuit.

Where:

From the question,

Substitute these values into equation 2

Hence, the total resistance of the circuit is 9 ohms.

Learn more about resistance here: https://brainly.com/question/28135236

#SPJ1

The right to live in a home and use the property as long as a person lives is an example of a life estate. A life estate is a type of freehold estate where an individual has the right to use and live on a property for the duration of their life or the life of another individual.

What is a freehold estate?

A freehold estate is an estate in land that is owned for an indefinite duration. In other words, it is an estate in land that is held for an unlimited period of time. It is an estate in land that gives an individual absolute ownership over the property, subject to governmental restrictions, such as zoning regulations, or the like.

What is a life estate?

A life estate is a freehold estate in which an individual has the right to use and live on a property for the duration of their life or the life of another individual. Once the individual passes away, the property reverts back to the original owner or to another individual who has the right to take possession of it. The individual who holds the life estate is known as the "life tenant" and has the right to use and enjoy the property as if they own it.

The life tenant has the right to lease the property, collect rent from tenants, and even sell the property during their lifetime. However, they cannot sell the property to another individual and give them ownership beyond their lifetime. Once the life estate has ended, the property reverts back to the original owner or to another individual who has the right to take possession of it.

Learn more about freehold estate:

https://brainly.com/question/14507472

#SPJ11

The reason that operations managers consider these aspects is because they want to provide quality service to the users of the telephone line.

Globalization is a term that refers to an economic, technological, political, social and cultural process that has had influence throughout the world. Globalization is based on the growing communication and interdependence between the different countries of the world, uniting their markets and societies.

This situation is related to globalization because it shows that companies can hire employees anywhere in the world because technology allows a person from India to communicate with someone from the United States without any difficulty.

Additionally, it is part of globalization because employees are trained so that their English accent is similar to that of the United States so that users of the line do not detect that they are from another country and feel more confident to book their tickets.

Learn more about globalization in: https://brainly.com/question/16499151

#SPJ1

Answer:

A tax is a monetary payment without the right to individual consideration, which a public law imposes on all taxable persons - including both natural and legal persons - in order to generate income. This means that taxes are public-law levies that everyone must pay to cover general financial needs who meet the criteria of tax liability, whereby the generation of income should at least be an auxiliary purpose. Taxes are usually the main source of income of a modern state. Due to the financial implications for all citizens and the complex tax legislation, taxes and other charges are an ongoing political and social issue.

I dont know I asked this to

Explanation:

There are 100 power strokes per second in this engine.
a) In a four-stroke cycle engine, ignition occurs once every two revolutions. Since there are 360 degrees in one revolution, ignition occurs every 720 degrees of engine rotation.
(b) In an in-line four-cylinder engine, there are four power strokes occurring, one in each cylinder. However, in a four-stroke cycle engine, each cylinder only has a power stroke once every two revolutions. So, there are 2 power strokes per revolution (one power stroke per two cylinders).
(c) To calculate the number of power strokes per second, first find the number of revolutions per second. Since the engine operates at 3000 RPM (revolutions per minute), divide by 60 to get revolutions per second:
3000 RPM ÷ 60 = 50 revolutions per second
Now, multiply the revolutions per second by the number of power strokes per revolution:
50 revolutions per second × 2 power strokes per revolution = 100 power strokes per second.
So, there are 100 power strokes per second in this engine.

To know more about number visit:

https://brainly.com/question/3589540

#SPJ11

Answer:the inflating Ballon expirement

Explanation:

The Mechanical Advantage of a claw hammer being used to pull up floor nails with the distance from the worker's hand to the floor being 1 foot and the distance from the hammer head to the nail head being 1.5 inches is equal to 8.

Using the formula for Mechanical Advantage, MA = Resistance Force/ Effort Force.In this arrangement, the effort force is exerted by the worker's hand and the resistance force is the force required to pull up the floor nail.To solve for the Mechanical Advantage, the first step is to convert all the measurements to the same units. Therefore, the 1 foot distance from the worker's hand to the floor is equal to 12 inches.Using the formula for the Mechanical Advantage of this arrangement:MA = Resistance Force/Effort Force,The distance from the hammer head to the nail head is the effort distance, d_effort = 1.5 inches.

The distance from the worker's hand to the floor is the resistance distance, d_resistance = 12 inches.The Mechanical Advantage is therefore,MA = Resistance Force/ Effort ForceMA = d_resistance/ d_effortMA = 12/1.5MA = 8Therefore, the Mechanical Advantage of a claw hammer being used to pull up floor nails with the distance from the worker's hand to the floor being 1 foot and the distance from the hammer head to the nail head being 1.5 inches is equal to 8.

To  know more about distance visit:

https://brainly.com/question/13034462

#SPJ11

One of the methods that are used to separate polymers, aluminium alloys, and steels from one another is the Gravitation Separation method.

One straightforward technique is to run the mixture through a magnet, which will keep the steel particles on the magnet and separate them from the polymer.

What is the Gravitation Separation method?

When it is practicable to separate two components using gravity, i.e., when the combination's constituent parts have different specific weights, gravity separation is a technique used in industry. The components can be in suspension or in a dry granular mixture.

Polymers, Steel and Aluminium alloys can be readily split apart. The technique depends on how the two components are combined. The approach used is gravitational density. Due to the significant difference in relative specific mass values between steel and polymers (which range from 1.0 to 1.5), it is possible to separate them using flotation in a liquid that is safe and has the right density.

Therefore, the Gravitation Separation method is used to separate polymers, aluminium alloys and steels.

To learn more about the Polymer from the given link

https://brainly.com/question/2494725

#SPJ4

Primary functions: Maintaining the internal temperature within a specified range.Failure mode of the primary function: The internal temperature of the fridge falls outside the specified range of 2°C-8°C. 3.2

The corresponding functional failures of the function mentioned in Q3.1 are:1. Compressor failure.2. Electrical failure.3. Sensor failure.4. Fan failure.3.3 Identify two failure modes of the failures mentioned in Q3.2.Failure modes of compressor failure: Overheating and physical damage.Failure modes of electrical failure: Overheating and complete failure of electrical systems.Failure modes of sensor failure: Loss of calibration and reading accuracy.Failure modes of fan failure: Bearing failure and motor failure.3.4 Identify the corresponding failure effects of the failure modes mentioned in Q3.3.Corresponding failure effects are:

1. Overheating could lead to melting of internal plastic components.

2. Physical damage could lead to the compressor seizing, which could prevent the fridge from cooling.

3. Overheating could lead to melting of internal components, which could short-circuit and damage the electrical system.

4. Complete failure of electrical systems could result in the fridge not functioning at all

.5. Loss of calibration could lead to the temperature sensor displaying incorrect temperature readings, resulting in incorrect internal temperature ranges.

6. Reading accuracy could lead to the temperature sensor displaying incorrect temperature readings, resulting in incorrect internal temperature ranges.

7. Bearing failure could lead to the fan not rotating, which could prevent air from circulating, resulting in an increase in the internal temperature.

8. Motor failure could lead to the fan not rotating, which could prevent air from circulating, resulting in an increase in the internal temperature.

To know more about temperature visit:

brainly.com/question/26172293

#SPJ11

Answer:

D. Field theory.

There are a lot of ways employees uses in controlling exposure routes.  But when risk assessment is not be performed is not a part of the control methods.

The ways to control workplace hazards are known to be means taken to ensure safety in the workplace.

The examples are:

Learn more about exposure routes from

https://brainly.com/question/25799066