#7. Linked list - print last node... Extra info/hint? It's free
Given the following class for the nodes in a linked list:
public class Node {
...
public Node getNext() {...} // return next field
public int getData() {...} // returns data
}
Assuming that the variable head points to (i.e. contains the address of) the first node of a linked list, write the
statement(s) to print the data value in the last node of the linked list to the console. The format of the output must be
"Last node has: n" where n is the number.
You may declare additional variables and assume that there is at least one node in the linked list.
Sample console I/O execution sequence
Last node has: 35
Type or paste your response to this question here
#4. Linked list - every other node... Extra info/hint? It's free
I have a program which prompts a user for an integer (n) and then builds a linked list with numbers between 1 and n.
For example, if the user enters 5, the program will build a linked list with 1 through 5, and display it as 5, 4, 3, 2, 1.
I would like to also display every other node data in this program i.e. 5, 3, 1 for the above example.
Given the following class for the nodes in a linked list:
public class Node {
...
public Node getNext() {...} // return next field
public int getData() {...} // returns data
}
Assuming that the variable head points to (i.e. contains the address of) the first node of the linked list, write the
statement(s) to print the data value in every other node of the linked list to the console. For example if the list has 5->4->3->2->1, the output should be 5 3 1 i.e. the numbers only with spaces in-between.
If the list is empty 0 size), you code should not print out anything.
You may declare additional variables and assume that the list may have any number of nodes including zero.
If the list is empty, do not print anything, otherwise print the data separated by white spaces.
Sample console I/O execution sequence
Enter list size: 5
List data: 5 4 3 2 1
Every other data: 5 3 1
Enter list size: 0
List data:
Every other data:
Type or paste your response to this question here
#5. Single linked list - average... Extra info/hint? It's free
For this problem, I have a complete linked list program which supports the following commands from the user:
insert, display, delete, average, find, insertBefore, insertAfter. insert allows them to insert a number into the current list,
display will display the numbers in the current list
etc.
The program is complete except that I have removed the body of the method for averaging the numbers in the linked list..
Given the following class for the nodes in a linked list:
public class Node {
...
public Node getNext() {...} // return next field
public int getData() {...} // returns data
}
Assuming that the variable head points to (i.e. contains the address of) the first node of a linked list, write the
statements to find the average of all data values in the linked list. For example, average() will return something like
"avg: 2.67" or "Empty". The average should be returned as a string with exactly two digits of decimal accuracy, or
Empty if the list is empty. Your statements will be inserted inside a method like the following:
public String average() {
// Whatever statements you provide in response to this question will // be inserted here BY THE SYSTEM and then compiled and tested as part of
// a larger program which does many other things with the linked list
}
Sample console I/O execution sequence
Linked list code sample. Options are:
(insert, display, delete, average, find, insertBefore, insertAfter)
What would you like: insert 4
inserted 4
What would you like: insert 1
inserted 1
What would you like: insert 3
inserted 3
What would you like: average
avg: 2.67
What would you like: delete 3
deleted 3
What would you like: delete 4
deleted 4
What would you like: delete 1
deleted 1
What would you like: average
Empty
What would you like: Exit
Bye

The best practice in formatting spreadsheets include the following: D. Organize data in vertical columns with first row header.

In Computer technology, a spreadsheet can be defined as a type of computer document which comprises cells that are arranged in a tabulated format with rows and columns.

Additionally, a spreadsheet is typically used in various field to do the following on a data:

Generally speaking, a best practice that should be adopted by end users when formatting spreadsheets is making sure that the data are organized in vertical columns with first row header.

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The given program case can be saved using Scratch editor.

Let’s create a character that can change to a random sequence of colours for the player to memorise.

Activity Checklist

Start a new Scratch project, and delete the cat sprite so that your project is empty. You can find the online Scratch editor at

jumpto.cc/scratch-new.

Choose a character and a backdrop. Your character doesn’t have to be a person, but it needs to be able to show different colours.

In your game, you’ll use a different number to represent each colour:

1 = red;

2 = blue;

3 = green;

4 = yellow.

Give your character 4 different colour costumes, one for each of the 4 colours above. Make sure that your coloured costumes are in the right order.

To create a random sequence, you need to create a list. A list is just a variable that stores lots of data in order. Create a new list called sequence. As only your character needs to see the list, we can also click ‘For this sprite only’.

You should now see your empty list in the top-left of your stage, as well as lots of new blocks for using lists.

Add this code to your character, to add a random number to your list (and show the correct costume) 5 times.

Step 2

Let’s add 4 buttons, for the player to repeat the sequence they’ve remembered.

When the red drum is clicked, you’ll need to broadcast a message to your character, letting them know that the red button has been clicked. Add this code to your red drum.

When your character receives this message, they should check whether the number 1 is at the start of the list (which means that red is the next colour in the sequence). If it is, you can remove the number from the list, as it’s been guessed correctly. Otherwise it’s game over

Click on your stage, and add this code to make the backdrop change colour once the player has won.

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The statement of customer instructions are key to a perfect delivery is true. The time we need for eye-lead to eliminate distractions using REPS and Checks is 8-15 seconds.

For the first question,

Delivery is about how to deliver something that customers wants so that they can be satisfied. So, with following the customer instruction we can make perfect delivery.

For the second question,

REPS and check is to recognize the hazards, eliminated them, plan ahead, and seek space, this also include to check for yourself, the hazards, the space, and the pace.

This REPS and check method is used as safety measurement for avoid accident in driving. The eye-lead is different depend on the street which taken but normally is 8-15 seconds.

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Metalworking is the process of shaping and forming metals into different shapes and structures.

What is Metalworking?
The process of shaping as well as reshaping metals to produce practical items, parts, assemblies, and large-scale structures is known as metalworking. As a term, it encompasses a broad and varied range of procedures, aptitudes, and equipment for creating items of all sizes, from enormous ships, structures, and bridges down to minute engine components and delicate jewellery.

It involves many processes, including forming, cutting, joining, and finishing. Forming is the process of shaping the metal into its desired shape, usually by using a tool such as a hammer or press. Cutting is the process of removing unwanted pieces of material from the metal, usually with a tool such as a saw or drill. Joining is the process of connecting two pieces of metal together, usually with a tool such as a welding torch or a rivet gun. Finishing is the process of polishing the metal to give it a smooth, even surface.

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If there is no correlation between temperature and sales, there is a 4% probability that such an extreme sample will be chosen.

With the help of regression analysis, it is possible to pinpoint the variables that affect a certain issue with accuracy. Regression analysis enables you to clearly identify the aspects that are most important and those that can be disregarded.

A machine learning approach called linear regression is used to predict parameters with continuous nature. In this study, the predicting of the minimum and maximum temperature as well as wind speed has been done using linear regression.

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The repairs and maintenance for a vehicle owned by the company will be Routine oil changes. Then the correct option is B.

Knowing the difference between vehicle repairs and car maintenance is essential if you own a car. Although they serve different purposes, each of these items is crucial to the performance as a whole.

While auto repairs are done when a vehicle is not operating correctly, maintenance is essential for your car on a regular basis.

Oil changes are the most well-known type of routine maintenance that everyone is familiar with. However, it is not the only service that is essential for your automobile to function properly. Here is a summary of typical vehicle maintenance procedures required to maintain your automobile in peak condition.

Routine oil changes will be performed as repairs and maintenance on a vehicle owned by the corporation. Then, choice B is the best one.

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The speed at which an aero plane is designed to navigate (VA) is the speed that the airplane The lift and G-force increase with rises to 12, 15, and 18 degrees.

It is the pace at which a displacement changes in relation to its environment. The speed of a body is a scalar quantity since it is independent of direction. In a specific direction, it is also the rate at which displacement with regard to the environment is changing.

Velocity, as opposed to speed, refers to the pace and direction of an object's movement as it moves down a path.

Speed is defined as the rate at which a distance changes over time. It has a distance by time dimension. The basic unit of distance with the basic unit of time are combined to form the SI unit of speed.

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 By incorporating the sequence, authorised users of the sequence can ask for a new value. In DML instructions, NEXTVAL phrase is used. the progression. The expression CURRVAL returns the supplied sequence's most recent value.(D) None of the above is the answer

When using the format sequence, you must qualify NEXTVAL or CURRVAL with the name (or synonym) of a sequence object that is present in the same database.

NEXTVAL or in order.

THE CURRVAL. The owner name of a sequence can also be used to qualify an expression, as in zelaine.myseq. CURRVAL. If one is available, you can specify a valid synonym or the sequence's SQL identifier.

What function returns the sequence's most recent value?

The current value of the series is returned by this function. Here are some examples of NEXTVAL and CURRVAL. Sequence constructed via SQL> create seq msd.

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Below you can find the compare and contrast of software development process with the software project management (poma) process.

process for developing software

A framework put on the creation of a software product is the software development process or life cycle. Such processes include a number of models, each of which describes methods for a range of tasks or activities that take place during the process. Process approaches are being used by more and more firms that build software.

Analysis of Requirements

The first step in building desired software is to identify its needs. Customers likely think they know what the product is supposed to perform, but identifying incomplete, confusing, or conflicting requirements may take ability and experience in software engineering.

method for managing software projects

The art and science of organising and supervising software projects are known as software project management. It is a branch of project management where software projects are planned, carried out, tracked, and managed. The different operations that make up software project management include project planning, determining the scope of the software product, cost estimating in various forms, task and event scheduling, and resource management.

Project Management

Scope Control

Task Estimation

Project Management

Planning the software project is a step that must be taken before the programme is actually produced. It is there to support software creation, but it doesn't really entail any specific tasks that are directly related to it; rather, it consists of a number of procedures that make software production easier.

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A high fashion retailer should rely on Interpretation of industry trends and customer tastes to forecast next season's demand. Thus, the correct option is option B.

A clothing store sells to customers who (most likely) will wear the items themselves or give them as presents. Generally speaking, fashion retailers don't sell their goods to other stores that would resell them.

Fashion retailing is a fantastic industry.. Speak with any owner of a clothing store. They will probably let you know about the challenges as well as the joys of the retail industry in addition to the enjoyment.

Those who sell products to the general public for use or consumption as opposed to resale are known as retailers. Clothing, shoes, and accessories for the fashion industry are all sold by fashion retailers. Different retail business models exist in the clothing industry.

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At the rubber-nitrogen interface, the mass density is 0.1092 kg/m3.

The weight of an object—which is determined by multiplying its mass by the gravitational acceleration—determines the force of gravity acting on it, or w = mg. Given that weight is a force, the SI unit for weight is the newton. Density is equal to mass/volume.

Measures of mass (weight). The metric system of measuring employs the gram (g), kilogram (kg), and tone as its mass units (t). The mass density of a substance, material, or item is a measurement of its mass (or number of particles) in relation to the volume it occupies.

Although the terms "mass" and "weight" are frequently used interchangeably, they have very different definitions. You have the same mass throughout the cosmos, but various places have different weights.

The mass density is then

                      p = mp

                         =28.0.00390 kg/m3

                          = 0.1092 kg/m3

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Answer: this took a long time to figure this out, but I got it, so here is the answer

Explanation:

The regression error term is ui, while the residual is ei. Most frequently, individuals confuse the two and mix them together. There is a line that can be used to separate the two. The primary distinction between ui and ei is that ei is observable because ei = Yi -Yi, whereas ui is not.

Take into account the next straightforward linear regression model. Yi = + Xi + I where Yi is the dependent variable for each unit i. (response). The independent variable is Xi (predictor).

The divergence between the observed value and the true value of a quantity of interest constitutes an observation's error (for example, a population mean).

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You may get a 30-day trial membership and then pay for it. The Business and Professional programmer are our two paid options. You may get a thorough comparison of them here.

To be clear, only workspace owners are permitted to buy subscriptions.

Go to Workspace programmer and choose Subscription to purchase a subscription.

Click the Choose Your Plan button on the page that has appeared.

Pick the size of the team.

Choose the proper pay frequency (annually or monthly).

Select the Professional or Business Plan.

Enter the details for your payment and billing.

Place Order by clicking.

If by mistake you clicked Choose Free Plan, simply click Upgrade Now again and follow the steps above.

Typically, processing an order takes a few seconds. On sometimes, it could take 30 minutes (when the order is being checked). You will be enrolled in the Free Plan up till your order is not finalised.

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Attack Surface is the term is used to describe the digital and physical vulnerabilities of the iot hardware and software environment.

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The  volume of the tank required to store the volume of air needed to drive all 500 nails is  782.3 liters. The maximum pressure that can be used in the tank is 35 bar.

To find the maximum pressure that can be used in the tank, we need to first determine the total amount of energy needed to drive all 500 nails.

Based on the fact that each nail is one that needs 1 kJ of energy and we need to drive 500 nails, the total energy needed is 500 kJ.

So, the next thing we do is to determine the volume of air needed to drive all 500 nails.

Since each nail requires 570 cm³ of air at 7 bar, the total volume of air required to drive all 500 nails is:

500 * 570 cm³

= 285,000 cm³ .

To m³

570 cm³ / 1,000,000 cm³/m³

= 0.00057 m³

Since the pressure in the tank cannot exceed 35 bar, we need to also calculate the volume of the tank needed to store this volume of air at 35 bar using the ideal gas law:

PV = nRT

Where:

So when Solving for V, we get:

V = (nRT) / P

= (1 * 8.31 J/mol*K * 298 K) / (35 bar)

= 782.3 L

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Equilibrium state: If the algebraic sum of all the forces acting on the body equals zero, and the algebraic sum of all the moments about any point equals zero, the body is said to be in equilibrium.

Diagram of a free body:

A free-body diagram depicts all of the forces acting on the body.

Shear force and bending moment diagrams show the shear force and bending moment at each segment and point of the beam.

Maximum bending moment location:

At the point of zero shear force, the beam has the greatest bending moment.

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The moment of inertia of the shaded area about the x-axis is 6.1966 × 10⁶ mm⁴

Area moment of inertia:

It is also referred as second moment of inertia. It is directly proportional to the cross-sectional area and distance of the centroid of the area from the reference axis.

Parallel axis theorem:

According to parallel axis theorem, the moment of inertia about any axis which is parallel to the axis passing through the centroid of the body is equal to the sum of the moment of inertia about the centroid of the section and the product of Area of the body with the square of the distance between the two axes.

To calculate the moment of inertia of the whole section, divide the whole section two sections and calculate the moment of inertia of each subpart about x axis using parallel axis theorem and add all to get the moment of inertia of the whole section about x axis.

Write the formula for area moment of inertia for a rectangular cross section about its centroidal axis.

I = bd³/3

Here, breadth and height of the rectangular section are b and d respectively.

Write the equation for moment of inertia of any shape about point O using parallel axis theorem.

Io = Ic +A(d)²

Here, moment of inertia of shape about point O is

Io

moment of inertia of shape about centroid is

Ic

cross sectional area is A and distance between point O and centroid is

d

Area of the semi-circular plate is given as:

A = πR²/4

The area moment of inertia of the semi-circular plate about centroidal axis is given as:

I = (π/16 - 4/9π)R⁴

Calculate the cross-sectional area of section (1).

A₁ = 84²

= 7056 mm²

Calculate the distance of the centroid of section (1) from x-axis.

y₁ = 84/2

= 42 mm

Calculate the cross-sectional area of section (2).

A₂ =1/4 (π×r²)

Here, r is the radius of the quarter circle.

A₂ =1/4 (π×60²)

= 2827.4333 mm²

Calculate the distance of the centroid of section (2) from x-axis.

y₂ = 84 - 4r/3π

Substitute 60 mm for r.

y₂ = 84 - 4*60/3π

= 58.5352 mm

Calculate the distance of the centroid of section (2) from x-axis.

6.1966 × 10⁶ mm⁴

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The same as when rounding to three decimal places, we also round a number to three significant figures.

For three digits, we start counting with the first non-zero digit. Next, we round the final digit. Any empty spaces to the right of the decimal point are filled with zeros. As a result, when 1,500 is written without a decimal point, the two trailing zeros are not important; instead, the number has two significant figures. The fact that 1,500.00 has a decimal point, however, makes all six digits important. Significant figures allow us to demonstrate a number's accuracy. A number's integrity is compromised if it is used to express something that is outside of its real range of measurement.

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Design is evaluated for fatigue strength or endurance strength using Goodman criteria. When compared to the general assumed endurance stress of steel, 0.5 ultimate strength, the design was found to be safe. The number of fatigue failure cycles was calculated using the Basquin's equation.

Stress is a force per unit area within materials that results from externally applied forces, uneven heating, or permanent deformation and allows for accurate description and prediction of elastic, plastic, and fluid behavior in physical sciences and engineering. A stress is defined as the product of a force divided by its area.

There are several types of stress. Normal stress is caused by forces perpendicular to a material's cross-sectional area, whereas shear stress is caused by forces parallel to and within the plane of the cross-sectional area.

Tensile stress refers to the normal stress caused by tension. When the two forces are reversed, the normal stress is known as compressive stress.

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I have tried to gove proper way 2D format images in the solution... pls go through all the steps you will get more details. chart design.

Step 1 - Select both columns in Table(first select A5:A12, then hold CTRL Key and Select F5:F12)

Step 2 - Go to Insert Ribbon Tab and next Charts group, then select Pie Chart Command.

Step 3- A Pie chart of selected data is created.

Step 4 - Resize the chart size by dragging chart shape.

Step 5- Go to Chart Design Ribbon Tab, and then select Style 3 from Chart Style  Group

Step 6- Go to Chart Design Ribbon Tab, and Chart Element Group, where select Chart Title and Enter Value in Chart title.

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Answer:

   All major PC operating systems feature a graphical user interface.

Yes

How can you determine if a device is an input device or an output device?

A. An input device allows you to enter data and instructions into the memory of a device. An output device is a useful form of the processed data.

Which of the following describe the purpose of the operating system? Select all that apply.

A. Directs internal components to manage and complete a task

B. Coordinates the resources and activities on a computer

D. Manages interactions between hardware and software

A buffer stores input or output data in/on an area of the computer's ____.

A. memory

When purchasing a new electronic device, you should consider _____. Select all that apply.

A. selling or donating your old device

B. buying a used device that still functions

D. locating an electronics recycler near you

How is a program window different from a folder window?

D. A program window displays a running program and a folder window displays contents of a drive, folder, or device.

Compressed files have the ____ file extension.

D. .zip

A hypervisor manages the creation and running of a virtual machine.

Yes

To copy by dragging in Windows, hold the ____ key while you drag.

D. CTRL

No lenear dynamic occurred because there is no response to input.

computer science, the general meaning of input is to provide or give something to the computer, in other words, when a computer or device is receiving a command or signal from outer sources, the event is referred to as input to the device.

Nonlinear dynamics models can be used to study spatially extended systems such as acoustic waves, electrical transmission problems, plasma waves, and so forth. These problems have been modeled by using a linear chain of discrete oscillators with nearest neighbor coupling .

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The approximate settlement of the deposit due to the fill is 13.7 ft.

What is deposit?
A deposit is the act of giving money (or money equivalents) to an organisation, most frequently a bank or other financial institution. The deposit is indeed a credit for the party that made it (individually or as a group), and it can be refunded (withdrawn) in accordance with the terms set forth at the time of deposit, transferred to another party, or applied to a future purchase. The primary funding source for banks is typically deposits.

The approximate settlement of the deposit due to the fill can be computed by using the Terzaghi Settlement formula:
S = (γ_d - γ_s)*H*Cc*e^(1+(m/Cc))

where S is the settlement (in feet), γ_d is the dry unit weight of the fill material (in lb/cu.ft), γ_s is the dry unit weight of the underlying soil (in lb/cu.ft), H is the height of the fill (in feet), Cc is the compression index of the underlying soil, and m is the coefficient of compressibility of the underlying soil.

For this problem, γ_d = 108 lb/cu.ft, γ_s = 122 lb/cu.ft, H = 10 ft, Cc = 0.58, and m = 0.

Therefore, the approximate settlement of the deposit due to the fill is:
S = (108 - 122)*10*0.58*e^(1+(0/0.58)) = -13.7 ft

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The value of x by elimination method = 134.35 and value of y by elimination method = 35.35 .

The process of elimination adds or subtracts equations to get an equation for a single variable. If the coefficients of the variables are opposite, add the equation and remove the variable, and if the coefficients of the variables are equal, subtract the equation and remove the variable. Elimination is best when the equations are in standard form Ax+By=C and all variables have non-unitary coefficients.

(0.7071) - y(0.7071) = 70 -------------> 1

x(0.7071) + y(0.7071) = 120 ---------- 2

Add 1 and  2 equation

2(0.7071)x = 70 + 120

(0.7071) x = 95

x = 134. 35

Putting the value of x

(134 - 35 - y) = 70/(0.7071)

134.35 - y = 98.995

y = 134 .35 - 98.995

y = 35. 35

You can remove or remove one of the variables, allowing you to solve simplified equations. Some textbooks refer to the elimination method as the summation method or the linear combination method. This is because we are trying to combine two equations by addition.

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The statement is true. while catching several exceptions that are connected to one another via inheritance.

Use the ObjectOutputStream class's this method to serialize an object and output it to a file. A stack trace shows the method that was running when an exception occurred and all of the methods that were called in order to execute that method when an exception is thrown by a method that is operating beneath several layers of method calls. Each try statement is limited to one catch clause. The first catch clause containing a parameter suitable with the exception receives control of the program when an exception is thrown. The JVM searches the try statement's catch clauses in order from top to bottom when this happens.

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To divide the value of the seventh element of array a by 2 and assign the result to variable x , write x = a[ 6 ] / 2 .

A quantity that can take any value from a range of values is called a variable. A letter or symbol that represents a specific known or unknown number is called a constant.

There are following types of variables: independent variable. dependent variable. quantitative variable. qualitative variables. Intermediate variable. Moderation variable. External variable. confusing variables.

Examples of variables include age, gender, business income and expenses, country of birth, capital expenditure, class, eye color, and vehicle type. It is called a variable because it can have different values ​​between data units in a population and change over time.

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The partial pressure of benzene in equilibrium with this mixture is 0.0107 bar

Calculate the molar fraction of benzene in the equimolar mixture.

At 260 K, the equimolar mixture contains 10 mol % benzene, which is equal to 0.1 moles of benzene in a total of 1 mole of the mixture.

Calculate the vapor pressure of the mixture.

At 260 K, the vapor pressure of the mixture can be determined using the Clausius-Clapeyron equation:

Pmix = (30.45 cal g°·K·mol-1)·(0.0125 bar)·exp(-(278.7 K - 260 K)/(260 K))

Pmix = 0.1068 bar

Calculate the partial pressure of benzene in the mixture.

The partial pressure of benzene in the mixture can be calculated by multiplying the vapor pressure of the mixture by the molar fraction of benzene in the mixture:

Pbenzene = Pmix·xbenzene

Pbenzene = 0.1068 bar·(0.1 moles of benzene / 1 mole of mixture)

The partial pressure of benzene = 0.0107 bar

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Answer:In this scenario, an example of a table that is in first normal form but not in second normal form is the TRIPGUIDES table, which contains the columns TRIP_ID, GUIDE_NUM, and TRIP_NAME. This table is in first normal form because the domain of each attribute contains only atomic or unique values, and each attribute contains only a single value from the respective domain. However, the table is not in second normal form because the non-key column TRIP_NAME is dependent on only a portion of the primary key (TRIP_ID).

To convert the TRIPGUIDES table to second normal form, the table can be split into two tables: TRIP and TRIPGUIDES. The TRIP table would contain the columns TRIP_ID and TRIP_NAME, and the TRIPGUIDES table would contain the columns TRIP_ID and GUIDE_NUM. This way, the data in the TRIPGUIDES table would only be dependent on the primary key (TRIP_ID) and not on any non-key columns.

An example of a table that is in second normal form but not in third normal form is the RESERVATION table, which contains the columns RESERVATION_ID, TRIP_ID, OWNER_NUM, LAST_NAME, and FIRST_NAME. This table is in second normal form because it is in first normal form and no non-key columns are dependent on only a portion of the primary key (RESERVATION_ID). However, the table is not in third normal form because the non-key columns LAST_NAME and FIRST_NAME are dependent on the non-primary key column OWNER_NUM, which is not a candidate key.

To convert the RESERVATION table to third normal form, the table can be split into two tables: OWNER and RESERVATION. The OWNER table would contain the columns OWNER_NUM, LAST_NAME, and FIRST_NAME, and the RESERVATION table would contain the columns RESERVATION_ID, TRIP_ID, and OWNER_NUM. This way, the data in the RESERVATION table would only be dependent on the candidate keys (RESERVATION_ID and OWNER_NUM) and not on any non-key columns.

Explanation:

The current may be defined as the charge is divided by the time. The SI defines the coulomb in terms of the ampere and second. The time is usually written in second and the current is usually written in ampere.

The current when a charge of 1c SEC is passing through a point in a circuit:

I = Q/t

I = 1/1 = 1 Ampere

The current of 20 C of charge pass a particular point in a circuit in 10 seconds:

The charge (Q) = 20 C.

Time (t) = 10 seconds

The formula for Q = I x t

I= Q/t

I = 20 C/10 seconds = 2 Ampere

The time taken for 0.5 C to pass a point of a current of 0.05 a flows:

The charge (Q) = 0.5 C

The current (I) = 0.05 A

The formula for Q = I x t

Then, for t is:

t = Q/I

t = 0.5/0.05 = 10 seconds

The current flowing when 120 C flow by in 2 minutes:

The charge (Q) = 120 C.

Time (t) = 2 minutes = 120 seconds

The formula for I = Q/t

Hence,

I = 120/120 = 1 Ampere.

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