Question & Answer

How do the properties of thermosetting polymers differ from those of thermoplastics?

Before reading on, how would you define scarcity? Must goods be at least temporarily unattainable to be scarce?

What are the important variables that affect mass diffusion?

Write a short essay on the future of finance company operations. Should finance companies be merged into the banking industry, or should they remain distinctly different from commercial banks?

There are 21 correct answers in the following multiple choice questions (some questions have multiple answers that are correct). To attain a perfect score on the quiz, all correct answers must be given. Each correct answer is worth 1 point. Each omitted answer or wrong answer reduces the score by 1 point, and each additional answer beyond the correct number of answers reduces the score by 1 point. Percentage score on the quiz is based on the total number of correct answers. 20.1 Most sheet metalworking operations are performed as which one of the following: (a) cold working, (b) hot working, or (c) warm working? 20.2 In a sheet-metal-cutting operation used to produce a flat part with a hole in the center, the part itself is called a blank, and the scrap piece that was cut out to make the hole is called a slug: (a) true or (b) false? 20.3 As sheet-metal stock hardness increases in a blanking operation, the clearance between punch and die should be (a) decreased, (b) increased, or (c) remain the same? 20.4 A circular sheet-metal slug produced in a hole punching operation will have the same diameter as (a) the die opening or (b) the punch? 20.5 The cutting force in a sheet-metal blanking operation depends on which mechanical property of the metal (one correct answer): (a) compressive strength, (b) modulus of elasticity, (c) shear strength, (d) strain rate, (e) tensile strength, or (f) yield strength? 20.6 Which of the following descriptions applies to a V-bending operation as compared to an edgebending operation (two best answers): (a) costly tooling, (b) inexpensive tooling, (c) limited to 90° bends or less, (d) used for high production, (e) used for low production, and (f) uses a pressure pad to hold down the sheet metal? 20.7 Sheet-metal bending involves which of the following stresses and strains (two correct answers): (a) compressive, (b) shear, and (c) tensile? 20.8 Which one of the following is the best definition of bend allowance: (a) amount by which the die is larger than the punch, (b) amount of elastic recovery experienced by the metal after bending, (c) safety factor used in calculating bending force, or (d) length before bending of the straight sheetmetal section to be bent? 20.9 Springback in a sheet-metal-bending operation is the result of which one of the following: (a) elastic modulus of the metal, (b) elastic recovery of the metal, (c) overbending, (d) overstraining, or (e) yield strength of the metal? 20.10 Which of the following are variations of sheet-metal-bending operations (two best answers): (a) coining, (b) flanging, (c) hemming, (d) ironing, (e) notching, (f) shear spinning, (g) trimming, and (h) tube bending? 20.10 Which of the following are variations of sheet-metal-bending operations (two best answers): (a) coining, (b) flanging, (c) hemming, (d) ironing, (e) notching, (f) shear spinning, (g) trimming, and (h) tube bending? 20.12 The holding force in drawing is most likely to be (a) greater than, (b) equal to, or (c) less than the maximum drawing force? 20.13 Which one of the following stamping dies is the most complicated: (a) blanking die, (b) combination die, (c) compound die, (d) edge-bending die, (e) progressive die, or (f) V-bending die? 20.14 Which one of the following press types is usually associated with the highest production rates in sheet-metal-stamping operations: (a) adjustable bed, (b) open back inclinable, (c) press brake, (d) solid gap, or (e) straight-sided? 20.15 Which of the following processes are classified as high-energy-rate forming processes (two best answers): (a) electrochemical machining, (b) electromagnetic forming, (c) electron beam cutting, (d) explosive forming, (e) Guerin process, (f) hydroforming, (g) redrawing, and (h) shear spinning

In the screening of powders for sizing, what is meant by the term mesh count?

How do grain boundaries contribute to the strain hardening phenomenon in metals?

1.    Would the task environment for a wireless provider such as Verizon Wireless contain the same elements as that for a government welfare agency? Discuss the similarities and differences.

Helen holds 1,000 shares of Fizbo Inc. stock that she purchased 11 months ago. The stock has done very well and has appreciated $20/share since Helen bought the stock. When sold, the stock will be taxed at capital gains rates (long-term rate is 15% and short-term rate is the taxpayer’s marginal tax rate). If Helen’s marginal tax rate is 35 percent, how much would she save by holding the stock an additional month before selling? What might prevent Helen from waiting to sell? Ignore the time value of money.

In addition to cash contributions to charity, Dean decided to donate shares of stock and a portrait painted during the earlier part of the last century. Dean purchased the stock and the portrait many years ago as investments. Dean reported the following recipients in 2024: Charity Property Cost FMV State University Cash $ 15,000 $15,000 Red Cross Cash 14,500 14,500 State History Museum Antique painting 5,000 82,000 City Medical Center Dell stock 28,000 17,000 a. Determine the maximum amount of charitable deduction for each of these contributions ignoring the AGI ceiling on charitable contributions. b. Assume that Dean’s AGI this year is $150,000. Determine Dean’s itemized deduction for his charitable contributions this year and any carryover. c. Suppose Dean is a dealer in antique paintings, and he held the painting for sale before the contribution. What is Dean’s charitable contribution deduction for the painting in this situation? d. Suppose that Dean’s objective with the donation to the museum was to finance expansion of the historical collection. Hence, Dean was not surprised when the museum announced the sale of the portrait because of its limited historical value. What is Dean’s charitable contribution deduction for the painting in this situation (ignoring AGI limitations)?

Surface roughness is a measurable aspect of surface texture; what does surface roughness mean?

What are the advantages and disadvantages of welding compared to other types of assembly operations?

Calaf’s Drillers erects and places into service an off-shore oil platform on January 1, 2015, at a cost of $10,000,000. Calaf is legally required to dismantle and remove the platform at the end of its useful life in 10 years. Calaf estimates it will cost $1,000,000 to dismantle and remove the platform at the end of its useful life in 10 years. (The fair value at January 1, 2015, of the dismantle and removal costs is $450,000.) Prepare the entry to record the asset retirement obligation.

In 2024, Elaine paid $2,800 of tuition and $600 for books for her dependent son to attend State University this past fall as a freshman.  Elaine files a joint return with her husband.  What is the maximum American opportunity tax credit Elaine can claim for the tuition payment and books in each of the following alternative situations? a.  Elaine’s AGI is $80,000.

1. Could the long run and the very long run ever be the same length of time? 2. What will the long-run and very long-run market supply curves for a product look like? How will the shape of the long-run curve depend on returns to scale? 3. In the very long run, new isoquants will have to be drawn as factor productivity changes. An increase in productivity will shift the isoquants inwards towards the origin: less capital and labour will be required to produce any given level of output. Will this be a parallel inward shift of the isoquants? Explain.

How have money market rates changed since the beginning of the semester? Consider the current economic conditions. Do you think money market rates will increase or decrease during the semester? Offer some logic to support your answer. (LO1)

Define and sketch a groove weld.

What is the unit melting energy in welding, and what are the factors on which it depends?

What is a performance obligation, and how is it used to determine when revenue should be recognized?

1.       An organizational consultant said, “Some aspect of functional structure appears in every organization.” Do you agree? Explain.

Lanny and Shirley are recently divorced and do not live together.  Shirley has custody of their child, Art, and Lanny pays Shirley $22,000 per year.  All property was divided equally. a.       How much should Shirley include in income if Lanny’s payments are made in cash but will cease if Shirley dies or remarries? b.       How much should Shirley include in income if $12,000 of Lanny’s payments is designated as “nonalimony” in the divorce decree? c.       How much should Shirley include in income if Lanny’s payments drop to $15,000 once Art reaches the age of 18?

What is the heat-affected zone (HAZ) in a fusion weld?

In the movie Wall Street, Bud Fox is a broker who conducts trades for Gordon Gekko’s firm. Gekko purchases shares of firms that he believes are undervalued. Various scenes in the movie offer excellent examples of concepts discussed in this chapter. (LO3, LO4, LO6) a. Bud Fox comments to Gordon Gekko that a firm’s breakup value is twice its market price. What is Bud suggesting in this statement? How would employees of the firm respond to Bud’s statement? b. When Bud informs Gekko that another investor, Mr. Wildman, is secretly planning to acquire a target firm in Pennsylvania, Gekko tells Bud to buy a large amount of this stock. Why? c. Gekko says “Wonder why fund managers can’t beat the S&P 500? Because they are sheep.” What is Gekko’s point? How does it relate to market efficiency?

The welding power generated in a particular arc-welding operation = 3000 W. This is transferred to the work surface with a heat transfer factor = 0.9. The metal to be welded is copper whose melting point is given in Table 29.2. Assume that the melting factor = 0.25. A continuous fillet weld is to be made with a cross-sectional area = 15.0 mm2. Determine the travel speed at which the welding operation can be accomplished.

Describe the characteristics that a measure of money should have if it is to be manipulated by the Fed. (LO2)