C++ language

Using classes (OOD), design a system that will support lending various types of media starting with books. Program should be able to handle a maximum of 500 books. Program should meet at least the following requirements:

1. Define a base media class with a book class derived from it. (Specific class names determined by programmer.)

2. The classes should contain at least the following information: title, up to four authors, ISBN.

3. Define a collection class that will hold up to 500 books.

4. The program should be able to perform the following operations supported by the class definitions:

a) Load data from a drive

b)Sort and display the books by title

c)Sort and display the books by author

d)Add and remove books

Programming requirements: Must include examples of inheritance and composition

~~~Function/Class comments (Description, pre and post conditions)

~~~Internal comments for all functions

Find the magnetic field B inside of an infinite cylinder of radius R with uniform current density J

Describe the five most common injuries in the hospitality industry, and how you feel they might be prevented in the future. Your paper must be in APA format, a minimum of 500 words.

What are Russia’s economic strengths and challenges? minimum 2 paragraphs please

Your apparent weight is the force you feel on the bottoms of your feet when you are standing. Due to the Earth's rotation, your apparent weight is slightly more when you are at the South Pole than when you are at the equator. What is the ratio of your apparent weights at these two locations? Carry three significant figures in your calculation.

To demonstrate flavor aversion learning (that is, learning to dislike a flavor that is associated with becoming sick), researchers gave one group of laboratory rats an injection of lithium chloride immediately following consumption of saccharin-flavored water. Lithium chloride makes rats feel sick. A second control group was not made sick after drinking the flavored water. The next day, both groups were allowed to drink saccharin-flavored water. The amounts consumed (in milliliters) for both groups during this test are given below.

(a) Test whether or not consumption of saccharin-flavored water differed between groups using a 0.05 level of significance. State the value of the test statistic. (Round your answer to three decimal places.)

(b) Compute effect size using eta-squared (η²). (Round your answer to two decimal places.)
η² =

Derive the formula for the magnetic field of a solenoid using Ampere’s

law. Be sure to draw a diagram showing the solenoid, magnetic field and Amperean loop.

Explain how you use the loop to compute the enclosed current and circulation of the B field.

(On which sides is the dot product of B and dl zero, and why?)

Python Program:

Description
Create an object-oriented program that uses inheritance to perform calculations on a rectangle or a square.

Specifications

• Use a Rectangle class that provides attributes to store the height and width of a rectangle. This class should also provide methods that calculate the perimeter and area of the rectangle.
• Use a Square class that inherits the Rectangle class. This class should set the height and the width of the Rectangle superclass to the length that’s set in the Square subclass.
• The program should determine whether the user wants to enter a rectangle or a square.
• For a rectangle, the program should get the height and width from the user.
• For a square, the program should get the length of the square from the user.

Sample Output (Your output should be similar or can be the same to the text in the following box)

A charge of -3.40 nC is placed at the origin of an xy-coordinate system, and a charge of 1.60 nC is placed on the y axis at y = 4.50 cm .

a-If a third charge, of 5.00 nC , is now placed at the point x = 3.15 cm , y = 4.50 cm find the x and y components of the total force exerted on this charge by the other two charges. ?

b-Find the magnitude of this force.

c-Find the direction of this force.

For the last 7 years, Joseph has made deposits of ​$150.00 at the end of every year earning interest at 6 % compounded annually. If he leaves the accumulated balance for another 8 years at 5 % compounded semi dash annually comma what will the balance be in the​ account?

The balance will be $________.

You have been talking to a student from the engineering program at UBC who has also taken up temporary residence at the North Pole in between active semesters of her studies. Because of her engineering background, the elves have given her the nickname “Casey Jones”. Casey scoffs at the α = .05 significance level that psychologists use in their hypothesis testing procedure. She tells you “That means you will, in the long run, make an error one time in twenty. If engineers had an error rate like that think of all the buildings and bridges and such that would be falling down! Why don’t you psychologists be more like engineers and set your error rate to something like one in a million instead of one in twenty?” Explain to Casey Jones why, in the context in which psychologists use it, an alpha level of one in twenty makes more sense than an alpha level of one in a million.

Explain Diminishing Marginal Returns. How does that relate to Capital (K)? How does this explain why smaller countries grow faster than bigger countries.

a. Draw a graph showing the relationship between GDP and Capital (K).

Filer Manufacturing has 7 million shares of common stock outstanding. The current share price is $73, and the book value per share is $8. Filer Manufacturing also has two bond issues outstanding. The first bond issue has a face value of $75 million, has a 8 percent coupon, and sells for 98 percent of par. The second issue has a face value of $55 million, has a 9 percent coupon, and sells for 107 percent of par. The first issue matures in 23 years, the second in 7 years.

The most recent dividend was $4.5 and the dividend growth rate is 8 percent. Assume that the overall cost of debt is the weighted average of that implied by the two outstanding debt issues. Both bonds make semiannual payments. The tax rate is 30 percent.

Required: What is the company's WACC? (Do not round your intermediate calculations.)

A 12.79%

B 8.19%

C 7.69%

D 15.88%

E 7.94%

Please show work