(Solved) : Lot Of 140 Semiconductor Chips Is Inspected . . .

A by choosing a sample of five chips. Assume 10 of the chips do not conform to customer requirements.
(a) How many different samples are possible?
(b) How many samples of five contain exactly one nonconforming chip?
(c) How many samples of five contain at least one nonconforming chip?

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(Solved) : Light Ray Enters The Atmosphere . . .

A of a planet where it descends vertically to the surface a distance h below. The index of refraction where the light enters the atmosphere is 1.000, and it increases linearly to the surface where it has the value n.
(a) How long does it take the ray to traverse this path?
(b) Compare this to the time interval required in the absence of an atmosphere.

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(Solved) : Lessence Is A Small Cosmetics Company Located In The Perfume . . .

L’Essence is a small cosmetics company located in the perfume center of Grasse in southern France. The company plans to introduce a new body oil, called Energique, for which it needs to develop a standard product cost. The following information is available on the production of Energique:
a. The Energique base is made by mixing select lanolin and alcohol. Some loss in volume occurs for both the lanolin and the alcohol during the mixing process. As a result, each 100-liter batch of Energique base requires 100 liters of lanolin and 8 liters of alcohol.
b. After the base has been prepared, a highly concentrated lilac powder is added to impart a pleasing scent. Only 200 grams of the powder are added to each 100-liter batch. The addition of the lilac powder does not affect the total liquid volume.
c. Both the lanolin and the lilac powder are subject to some contamination from naturally occurring materials. For example, the lilac powder often contains some traces of insects that are not detected and removed when the lilac petals are processed. Occasionally such contaminants interact in ways that result in an unacceptable product with an unpleasant odor. About one 100 liter batch in twenty-one is rejected as unsuitable for sale for this reason and is thrown away.
d. It takes a worker two hours to process one 100-liter batch of Energique. Employees work an eight-hour day, including two hours per day for lunch, rest breaks, and cleanup.

Required:
1. Determine the standard quantity for each of the raw materials needed to produce an acceptable 100-liter batch of Energique.
2. Determine the standard labor time allowed to produce an acceptable 100-liter batch of Energique.
3. The standard prices for direct materials and direct labor in euros (€) appear below:
Lanolin . . . . . . . . . . . . . . . €16 per liter
Alcohol . . . . . . . . . . . . . . . €2 per liter
Lilac powder . . . . . . . . . . €1 per gram
Direct labor cost . . . . . . . €12 per hour
Prepare a standard cost card for materials and labor for one acceptable 100-liter batch of Energique.

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(Solved) : Loxley Corporation Is Authorized To Issue 50000 . . .

Loxley Corporation is authorized to issue 50,000 shares of $10 par value common stock. During 2010, Loxley took part in the following selected transactions.

1. Issued 5,000 shares of stock at $45 per share, less costs related to the issuance of the stock totaling $7,000.

2. Issued 1,000 shares of stock for land appraised at $50,000. The stock was actively traded on a national stock exchange at approximately $46 per share on the date of issuance.

3. Purchased 500 shares of treasury stock at $44 per share. The treasury shares purchased were issued in 2006 at $40 per share.

(a) Prepare the journal entry to record item 1.

(b) Prepare the journal entry to record item 2.

(c) Prepare the journal entry to record item 3 using the cost method.

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(Solved) : Pioneers Stored Fruits And Vegetables In Underground . . .

Pioneers stored fruits and vegetables in underground cellars. Discuss the advantages of this choice for a storage site.

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(Solved) : Mathematical Sketch A Titration Curve For The Amino Acid Lysine . . .

MatheMatical Sketch a titration curve for the amino acid lysine, and indicate the pKa values for all titratable groups. Also indicate the pH at which the amino acid has no net charge.

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(Solved) : Main Entries Are Driven In Sets Of Seven At A 53435 . . .

Main entries are driven in sets of seven at a depth of 1,466 mt in flat-lying strata. Entries are 6 m wide (Wo); pillars are 24 m wide (Wp). In vertical section showing entries and pillar widths, the two-dimensional extraction ratio R’ = Wo/ (Wo + Wp). Three proposals are presented for increasing this extraction ratio to 33% from the existing 20%.

(1) Decrease pillar width to 12 m while keeping entry width the same;

(2) Increase entry width while keeping pillar width the same, and

(3) Decrease pillar width while increasing entry width to 10 m, while keeping the center to center spacing of pillars and entries the same. Which plan is preferable from the rock mechanics viewpoint? Explain.

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(Solved) : Levon Helm Was A Kind Of Oneman Mortgage Broker He . . .

Levon Helm was a kind of one-man mortgage broker. He would drive around Tennessee looking for homes that had second mortgages, and if the criteria were favorable, he would offer to buy the second mortgage for “cash on the barrelhead.” Helm bought low and sold high, making sizable profits. Being a small operation, he employed one person, Cindy Patterson, who did all his bookkeeping. Patterson was an old family friend, and he trusted her so implicitly that he never checked up on the ledgers or the bank reconciliations. At some point, Patterson started “borrowing” from the business and concealing her transactions by booking phony expenses. She intended to pay it back someday, but she got used to the extra cash and couldn’t stop. By the time the scam was discovered, she had drained the company of funds that it owed to many of its investors. The company went bankrupt, Patterson did some jail time, and Helm lost everything.
Requirements
1. What was the key control weakness in this case?
2. Many small businesses cannot afford to hire enough people for adequate separation of duties. What can they do to compensate for this?

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(Solved) : Minesweeper The Wellknown Computer Game Is Closely Related To The . . .

Minesweeper, the well-known computer game, is closely related to the wumpus world. A minesweeper world is a rectangular grid of N squares with M invisible mines scattered among them. Any square may be probed by the agent; instant death follows if a mine is probed. Minesweeper indicates the presence of mines by revealing, in each probed square, the number of mines that are directly or diagonally adjacent. The goal is to have probed every un-mined square.

a. Let Xi,j be true ill square [i, j] contains a mine. Write down the assertion that there are exactly two mines adjacent to [1, 1] as a sentence involving some logical combination of Xi,j propositions.

b. Generalize your assertion from (a) by explaining how to construct a CNF sentence asserting that k of ii neighbors contain mines.

c. Explain precisely how an agent can use DPLL to prove that a given square does (or does riot) contain a mine, ignoring the global constraint that there ate exactly M mines in all.

d. Suppose that the global constraint is constructed via your method from part (b). How does the number of clauses depend on M and N? Suggest a way to modify DPLL so that the global constraint does not need to be represented explicitly.

e. Are any conclusions derived by the method in part (c) invalidated when the global constraint is taken into account?

f. Give examples of configurations of probe values that induce long-range dependencies such that the contents of a given un-probed square would give information about the contents of a far-distant square

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(Solved) : Mathematical Define Buffering Capacity How Do The Following Buffers Differ . . .

Mathematical Define buffering capacity. How do the following buffers differ in buffering capacity? How do they differ in pH?
Buffer a: 0.01 M Na2HPO4 and 0.01 M NaH2PO4
Buffer b: 0.10 M Na2HPO4 and 0.10 M NaH2PO4
Buffer c: 1.0 M Na2HPO4 and 1.0 M NaH2PO4

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