1. ABC company prepared the following contribution format income statement based on a sales volume of 1,000 unites:

a. Calculate contribution margin per unit, contribution margin ratio, and variable expense ratio. (5 points)

b. What would be the percentage increase in net operating income if sales volume increases by 50%? (5 points)

c. If the selling price increases by 10% and sales volume decreases by 10%, what would be the net operating income? (5 points)

d. What would be the break even point in unit sales if variable expenses per unit increases by 8% and fixed expenses increase by 10%? (5 points)

e. What is the margin of safety percentage? At what “percentage of sale volume decrease” the company would experience zero net operating income? (5 points)

True or Flase, preferably explain the reasoning behind the answer

a)The electric field inside the solid metal sphere is never zero

b)If the solid sphere is an insulator (instead of metal) with net charge Q, the charges are wherever they were placed, and cannot move around.

c) If the solid sphere is an insulator (instead of metal) with net charge Q, the electric field for r >> R would be the same as that of a conductor with the same shape and charge.

d)The net charge on the inside of the solid metal sphere is neutral.

e)The electric field for the metal sphere at r << R will be the same as the field of a point charge, Q, at the origin

f)The electric field near the metal surface on the outside is parallel to the surface.

List the 8 different types of simple machines. The 8th one is harder and less obvious.

Six similar boxes (A–F) are initially sliding in the positive direction along a frictionless horizontal surface at a speed of 10 m/s. Then a net horizontal force, also in the positive direction, is applied to each box for a period of 10 seconds. The masses of the boxes and the net horizontal force for each case are given below.

Rank the boxes in order of increasing FINAL momentum. That is, put first the box with the smallest final momentum, and put last the box with the largest final momentum.

If B is smallest, then A, C, D, and finally E is largest, enter BACDE.
Note: if final momenta are equal, then enter those cases in the order listed.

A) F = 30 N. . . . . . M = 15 kg
B) F = 80 N. . . . . . M = 10 kg
C) F = 70 N. . . . . . M = 15 kg
D) F = 75 N. . . . . . M = 15 kg
E) F = 95 N. . . . . . M = 25 kg
F) F = 110 N. . . . . . M = 10 kg

explain step by step please

1) A projectile returns to its original height after 4.08 seconds, during which time it travels 76.2 meters horizontally. If air resistance can be neglected, what was the projectile's initial speed?

(Use g = 9.80 m/s2)

This Comprehensive Problem is to acquaint you with the content of the 2015 financial statements of Home Depot, Inc., and related disclosures, excerpts of which are reproduced in Appendix A of this textbook. (The 2015 financial statements are for the fiscal year ended January 31, 2016.) The problem contains three major parts, which are independent of one another: Part I is designed to familiarize you with the general contents of a company’s financial statements; Part II involves analysis of the company’s liquidity; and Part III analyzes the trend in its profitability. If you work this problem as a group assignment, each group member should be prepared to discuss the group’s findings and conclusions in class. A good starting point for understanding the financial statements of a company such as Home Depot, Inc. , is to understand the accounting policies used in preparing those statements. The first note accompanying the financial statements provides a brief description of the major accounting policies the company used. Most of the areas discussed in this note have been covered in this text. Part I Annual reports include not only comparative financial statements but also other sources of information, such as: - A multiyear summary of financial highlights, a summary of key statistics for the past 5 or 10 years. - Several pages of Notes that accompany the financial statements. - Reports by management and by the independent auditors in which they express their respective responsibilities for the financial statements. Instructions: Answer each of the following questions and explain where in the statements, notes, or other sections of the annual report you located the information used in your answer. a. How many years are covered in each of the primary comparative financial statements? Were all of these statements audited? Name the auditors. What were the auditors' conclusions concerning these statements? b. Home Depot, Inc., combines its statement of retained earnings with another financial statement. Where are the details about changes in the amount of retained earnings found? c. Over the three years presented, have the company's annual net cash flows been positive or negative from (1) operating activities, (2) investing activities, and (3) financing activities? Has the company's cash balance increased or decreased during each of these three years? Part II Assume that you are the credit manager of a medium-size supplier of building materials and related products. Home Depot wants to make credit purchases from your company, with payment due in 60 days. Instructions: a. As general background read the first note to the financial statements, "Summary of Significant Accounting Policies." Next, compute the following for the fiscal years ending January 31, 2016 and February 1, 2015 (round percentages to the nearest tenth of 1 percent, and other computations to one decimal place): 1. Current ratio. 2. Quick ratio. 3. Amount of working capital 4. Percentage change in working capital from prior year. 5. Percentage change in cash and cash equivalents from the prior year. b. On the basis, of your analysis of your analysis in part a, does the company's liquidity appear to have increased or decreased during the most recent fiscal year? Explain. c. Other than the ability of Home Depot to pay for its purchases, do you see any major considerations that should enter into your company's decision? Explain? d. Your company assigns each customer one of the four credit ratings listed below. Assign a credit rating to Home Depot, Inc., and write a memorandum explaining your decision. (In your opinion memorandum, you may refer to any of your computations or observations in parts a through c, and to any information contained in the annual report.) POSSIBLE CREDIT RATINGS: A. Outstanding. Little or no risk of inability to pay. For customers in this category, we fill any reasonable order without imposing a credit limit. The customer's credit is reevaluated annually. B. Good. Customer has good debt-paying ability but is assigned a credit limit that is reviewed every 90 days. Orders above the credit limit are accepted only on a cash basis. C. Marginal. Customer appears sound, but credit should be extended only on a 30-day basis and with a relatively low credit limit. Creditworthiness and credit limit are reevaluated every 90 days. D. Unacceptable. Customer does not qualify for credit.

write a C program to display the dimensions of a room along with number of doors and number of windows. make it user prompt including a function.

Windsor Company began operations on January 2, 2016. It employs 8 individuals who work 8-hour days and are paid hourly. Each employee earns 9 paid vacation days and 7 paid sick days annually. Vacation days may be taken after January 15 of the year following the year in which they are earned. Sick days may be taken as soon as they are earned; unused sick days accumulate. Additional information is as follows.

Windsor Company has chosen to accrue the cost of compensated absences at rates of pay in effect during the period when earned and to accrue sick pay when earned.

Prepare journal entries to record transactions related to compensated absences during 2016 and 2017. (If no entry is required, select "No Entry" for the account titles and enter 0 for the amounts. Credit account titles are automatically indented when amount is entered. Do not indent manually.)

List of Accounts

Compute the amounts of any liability for compensated absences that should be reported on the balance sheet at December 31, 2016 and 2017.

________ 16.   According to the Rule of 72, it will take _____ years to double your money at a 6.4 percent rate of interest.

                         a. 11.25 years b. 11.33 years                         c. 11.67 years                   d. 12.00 years

________ 17.   Your current annual salary is $97,400. Your first job paid $22,500. How many years have you been

                         employed if your average annual salary increase has been 4.2 percent?

                         a. 26.87 years b. 31.15 years                         c. 32.01 years                   d. 35.62 years

________ 18.   Which one of the following statements is correct, all else held constant?

                         a.    The future value will decrease if the interest rate is increased.

                         b. The present value is directly related to the interest rate.

                         c. An increase in the interest rate will increase the time period.

                         d. The future value and the present value are directly related.

________ 19.   Ten years ago, Zenia had a population of 4.6 million residents. Today, there are 6.3 million residents of

                         Zenia. What is the annual rate of population growth?

                         a. 2.68 percent               b. 2.94 percent                        c. 3.19 percent                  d. 4.27 percent

________ 20.   A farmer currently produces 45,000 bushels of corn a year. He can increase his harvest by an average rate of

                         3 percent annually. How long will it be until the farmer can produce 50,000 bushels of corn each year?

                         a. 3.07 years b. 3.56 years                           c. 3.80 years                     d. 4.14 years

How did the Factory System affect the world economically?

please cite references

Explain, in detail, why atomic radii do not increase uniformly with increasing atomic number. Give specific examples in your answer.

1. During a 10-year period, the standard deviation of annual returns on a portfolio you are analyzing was 15 percent a year. You want to see whether this record is sufficient evidence to support the conclusion that the portfolio’s underling variance of return was less than 400, the return variance of the portfolio’s benchmark.

1. Formulate null and alternative hypotheses consistent with the verbal description of or objective.

2. Identify the test statistics for conducting a test of the hypothesis in part A

3. Identify the rejection point or point at the 0.05 significance level for the hypothesis tested in Part A

4. Determine whether the null hypothesis is rejected or not rejected at the 0.05 level of significance.

please show work

A firm that purchases electricity from the local utility is considering installing a steam generator. A large generator costs $300,000 whereas a small generator costs $240,000. The cost of operating the generator would be $100,000 per year for the large and $135,000 for the small. Either generator will last for five years. The cost of capital is 9%. For each generator option, assume immediate installation, with purchase and operating costs in the current year and operating costs continuing for the next four years. Assume payments under both options at the start of each year (i.e., immediate, one year from now,..., four years from now). What is the net present value of the more attractive generator? Please round your answer to the nearest dollar. Report the NPV of cost as a negative number.

1. Metblastine, a drug that inhibits microtubule function, is used to treat some forms of cancer. Hypothesize what cellular processes would be affected in cancer cells that are given Metblastine.
2. A mutation in the occludin gene, a tight junction protein, results in severe impairment of intestinal function, resulting in malnutrition and immune disorders. Knowing what you do about the function of tight junctions from class, propose the likely cause of the above disorders (think leaky small intestines). How might the loss of tight junctions impact the selective permeability of the intestinal cells?
3. For a protein to be an integral membrane protein, it would have to be amphipathic, with at least one hydrophobic region. Explain how a protein such as an aquaporin would interact with the surrounding phospholipid bilayer and the surrounding aqueous environment.
4. Describe the mechanism by which glucose and sodium ions are co-transported from the digestive tract into the intestinal cells of an animal? Assume that the intestinal cells already have intracellular glucose.