Shred, Inc. manufactures two types of paper shredders, Mini and Deluxe. Here are data for the current month:

Mini shredder Deluxe shredder

Selling price $240 per unit $480 per unit

Variable costs $160 per unit $370 per unit

Shred can manufacture 40 Mini shredders per hour but only 20 Deluxe shredders per hour. Fixed costs are $1.2 million per month and Shred’s maximum operating capacity is 600 hours per month. Fixed costs are unaffected by the mix of products produced. Monthly demand is 17,000 Mini shredders and 10,000 Deluxe shredders.

a. What is Shred’s operating income if it allocates the 600 operating hours 50-50 between Mini and Deluxe shredders? __________

b. What is Shred’s operating income if it emphasizes the product with the highest contribution margin per unit of constraint? ________

1) A thermocouple element when taken from a liquid at 50 degrees Celsius and plunged into a liquid at 100 degrees celsius at time equal to zero gave the following e.m.f. values. Determine the 95% response time. Time 0 20 40 60 80 100 120 e.m.f. (mV) 2.5 3.8 4.5 4.8 4.9 5.0 5.0

2) What are the advantages and disadvantages of a plastic film type of potentiometer and when compared with the wired-wound potentiometer.

3) A shaft encoder is to be used with a 50 mm radius tracking wheel to monitor the linear displacement. If the encoder produces 256 pluses per revolution, what will be the number of pulses produced by a linear displacement of 300 mm?.

4) Suggest a sensor that could be used, as part of a control system, to determine the difference in level between two containers. The output is to provide an electrical signal for the control system.

Question 36

There are two firms: Firm U and Firm L. Both firms have $50M total assets and $8M EBIT (earnings before interest and taxes). Firm U is an unleveraged firm without debt. Firm L is a leveraged firm with 50% of debt and 50% of common equity. The pre-tax cost of debt for Firm L is 10%. Both firms have 40% corporate tax rate. Calculate the return on equity (ROE) for firm U.

Question 37

Based on the information from Question 36, what’s the return on equity (ROE) for firm L

Question 38

Based on the information from Question 36, what’s the difference of the total dollars paid to all investors in Firm L and Firm U?

You are trying to decide how much to save for retirement. Assume you plan to save $ 7,000 per year with the first investment made one year from now. You think you can earn 7.5​% per year on your investments and you plan to retire in  31 ​years, immediately after making your last $ 7, 000 investment.

a. How much will you have in your retirement account on the day you​ retire.The amount in the retirement account in 31years would be?Round to the nearest​ cent.)

b.​ If, instead of investing $ 7,000 per​ year, you wanted to make one​ lump-sum investment today for your retirement that will result in the same retirement​ saving,

how much would that lump sum need to​ be?Round to the nearest​ cent.)

c. If you hope to live for 20 years in​ retirement, how much can you withdraw every year in retirement​ (starting one year after​ retirement) so that you will just exhaust your savings with the 20th withdrawal​ (assume your savings will continue to earn 7.5​% in​ retirement)?

The amount you can withdraw every year in retirement is? ​(Round to the nearest​ cent.)

d.​ If, instead, you decide to withdraw $ 157,000 per year in retirement​ (again with the first withdrawal one year after​ retiring), how many years will it take until you exhaust your​ savings? (Use​ trial-and-error, a financial​ calculator: solve for​ "N", or​ Excel: function​ NPER)  ​(Round to two decimal​ places.)

You will exhaust your savings in? years (Round to two decimal​ places.)

e. Assuming the most you can afford to save is $ 1,400 per​ year, but you want to retire with $ 1,000,000 in your investment​ account, how high of a return do you need to earn on your​ investments? (Use​ trial-and-error, a financial​ calculator: solve for the interest​ rate, or​ Excel: function​ RATE) ​

You will need a return of ?(Round to two decimal​ places.)

Exercise 6: Dog Years It is commonly said that one human year is equivalent to 7 dog years. However this simple conversion fails to recognize that dogs reach adulthood in approximately two years. As a result, some people believe that it is better to count each of the first two human years as 10.5 dog years, and then count each additional human year as 4 dog years. Write a program that implements the conversion from human years to dog years described in the previous paragraph. Ensure that your program works correctly for conversions of less than two human years and for conversions of two or more human years. Your program should display an appropriate error message if the user enters a negative number.

code by python

1.) In one or two sentences, describe how to use and interpret the result from each of the following to measure pH.

a.) acid-base indicator solutions.

b.) universal indicator paper.

c.) pH meter.

d.) if a solution had [h⁺] = 4.9 * 10^-7, what is the pH?

LAB Reaction Rates

Objectives

• Evaluate the effect of concentration on the rate of a chemical reaction. ν

• Examine the effect of temperature on the rate of a chemical reaction.

Background: Many people believe that you cannot perform chemical reactions without expensive equipment or costly chemicals. But this isn’t true; chemical reactions happen everywhere. All you need is a food store to find many substances that can produce exciting chemical reactions.

Preparation

Materials

Safety Precautions

Procedure

1. Read the procedure and safety information, and complete the lab form.

2. Make data tables similar to those shown on the next page.

3. Prepare a 50 percent vinegar solution by mixing 30 mL of vinegar with 30 mL of water. This is solution A.

4. Prepare a 30 percent vinegar solution by mixing 30 mL of vinegar with 70 mL of water. This is solution B.

5. Prepare a 10 percent vinegar solution by mixing 30 mL of vinegar with 270 mL of water. This is solution C.

6. Pour the vinegar solutions into their associated 0.5-L plastic bottles labeled A, B, and C.

7. Mark a small test tube about 1–2 cm from its bottom. Fill the test tube to the line with baking soda. Pour the baking soda into one balloon.

8. Repeat step 7 with two more balloons. Be sure the amount of baking soda in each balloon is the same.

9. Place the mouth of one balloon over the mouth of one 0.5-L bottle. Do not let any of baking soda fall into the vinegar solution.

10. Repeat step 9 with the other two balloons and the remaining bottles.

Inquiry Lab

11. Lift each balloon to allow the baking soda to fall into each vinegar solution. Time how long it takes for the reaction to finish. Measure how much each balloon inflates. Record your observations in your Concentration data table.

12. Carefully remove the balloons from the bottles.

13. Rinse the plastic bottles with water.

14. Prepare a 30 percent vinegar solution by mixing

30 mL of vinegar with 70 mL of cold water.

15. Prepare two more similar solutions with room-temperature water and hot water.

16. Place the three solutions in the three 0.5-L plastic bottles.
17. Repeat steps 7 and 8 to refill the balloons with baking soda.

18. Place the balloons back on the bottles, repeating steps 9 and 10.

19. Repeat step 11. Time how long it takes for the reaction to finish.

20. Measure how much each balloon inflates. Record your observations in your Temperature data table.

Concentration Data Table (Ballon circumferrence)

Temperature Data Table (Circumferrence of ballon)

Analyze Your Data

1. Describe how increasing the concentration of a solution affects the rate of a chemical reaction. (Concentration increases rate increases)

2. Summarize how temperature affects the rate of a chemical reaction.(Temperature increases rate increases)

3. Explain why the balloons become inflated.( Because of Co2)

Conclude and Apply

4. Infer why the vinegar solutions in steps 3, 4, and 5 were different volumes. Why couldn’t the volumes be the same?

5. Predict what factors might affect the amount of product that is produced. What factors affect the rate at which products are produced?

A medical study, a doctor is interested in determining what factors affect forced expired volume values (FEV). The doctor randomly samples 15 patients and records their smoking status and age. Using the data, create the regression output (including the y-intercept and both independent variables) then answer the questions below. Note that smoking status and age are recorded as categorical variables.

• Write out the estimated regression line. To receive full credit, you must label all variables/categories.

• Run an overall F-test to determine if the multiple regression model is significant at a 5% significance level. To receive full credit, you must give me:

• Predict the FEV value for a smoker over 50 years old.

• Estimate the average FEV for non-smokers between 30-40 years old.

Buckeye Department Stores, Inc. operates a chain of department stores in Ohio. The company’s organization chart appears below. Operating data for 20x1 follow.

The following fixed expenses are controllable at the divisional level: depreciation—furnishings, computing and billing, warehouse, insurance, and security. In addition to these expenses, each division annually incurs $60,000 of computing costs, which are not allocated to individual stores.

The following fixed expenses are controllable only at the company level: depreciation—building, property taxes, and supervisory salaries. In addition to these expenses, each division incurs costs for supervisory salaries of $110,000, which are not allocated to individual stores.

Buckeye Department Stores incurs common fixed expenses of $130,000, which are not allocated to the two divisions. Income-tax expense for 20x1 is $2,050,000.

Required:

1. Prepare a segmented income statement for Buckeye Department Stores, Inc. Please fill in the chart I provided below, thank you!

Prepare a segmented income statement for Buckeye Department Stores, Inc. (Enter your answers in thousands.)