Questions
A pair of narrow slits is positioned 1.90 m from a screen and illuminated with light...

A pair of narrow slits is positioned 1.90 m from a screen and illuminated with light made up of two wavelengths 556.00 nm and 507.60 nm.

First a filter is used to block the 507.60 nm light from reaching the screen.  The resulting interference maxima are found to be separated by s = 1.60 mm.

a) What is in meters the separation of the slits?
We now remove that filter and place a filter that blocks the 556.00 nm light.

b) What is in mm the obtained fringe separation?

We remove both filters.

c) What is in meters the separation on the screen of first bright maxima due to both wavelengths?

d) What is in meters the separation on the screen of fourth bright maxima due to both wavelengths?

In: Physics

Which do you think is more threatened in the U.S. today: individuals’ right to the free...

Which do you think is more threatened in the U.S. today: individuals’ right to the free exercise of religion OR individuals’ right to due process and equal protection under the law? Explain.

In: Psychology

1) For the following Business Cycle Phases listed (Provide objectives and at least two deliverables from...

1) For the following Business Cycle Phases listed (Provide objectives and at least two deliverables from each phase)

  • Initiation Phase: Make the business case for the project. Work also begins on the user experience and on architectural proof of concepts.
  • Discovery Phase: Conduct investigation leading to an understanding of the solution’s desired behavior
  • Construction Phase: Complete the analysis and design, code, integrate, and test the software
  • Final V & V Phase : Perform final testing before the product or service is transitioned into production
  • Closeout Phase: Manage and coordinate deployment into production and close the IT project.

                                                                                                         

SUBJECT : MODERN PROJECT MANAGEMENT

In: Operations Management

Before this class, what had you used Excel for? Do you know how to do something...

Before this class, what had you used Excel for? Do you know how to do something now that could have improved your previous creations?

In: Accounting

Practitioners measured spiritual well-being (SWB) in a sample of 16 adults who were alcoholic before and...

Practitioners measured spiritual well-being (SWB) in a sample of 16 adults who were alcoholic before and following treatment for alcoholism.

Change in SWB
Following Treatment

+11

−1

+10

−6

−8

+13

+20

−5

+12

−2

−3

+7

+14

+15

+9

−4

Use the normal approximation for the Wilcoxon signed-ranks T test to analyze the data above. (Round your answer to two decimal places.)
z =  

State whether to retain or reject the null hypothesis. (Assume alpha equal to 0.05.)

In: Math

A researcher working for an insurance company that sells life insurance would like to use regression...

A researcher working for an insurance company that sells life insurance would like to use regression analysis to predict life expectancy of his clients. He knows that there are several factors that contribute to life expectancy: some are genetic, some are related to life style, some are related to biological factors, and some are related to environment (access to health care, cleanliness of air, etc.) . He selects these candidate variables to develop his regression equation: gender, number of cigarettes smoked per day, cholesterol level, systolic blood pressure, and height-to-weight index: (actual weight / appropriate weight given gender, build, and height) * 100. Use the datasheet life expectancy in datasetsRM.xls to develop a regression equation to predict how long a person should live (for gender: 0=female, 1=male): 1. First, plot each non-categorical predictor variable against the dependent variable (age of death) and examine the plot to see if the relationship is linear. What’s your assessment? 2. Perform a multiple regression analysis and write up the results of your regression analysis in APA style. 3. For a male who does not smoke cigarettes at all, has a systolic blood pressure of 130, a height-to-weight index of 110, and a cholesterol level of 200, what is his life expectancy? NumCigsDay WtHtIndex Gender Cholesterol BloodPres AgeOfDeath 0 98 0 179 120 90 0 90 0 186 100 98 0 140 0 190 130 90 3 96 0 191 120 87 0 120 0 200 120 90 0 100 0 187 120 94 0 130 0 190 110 96 4 92 0 191 110 83 5 110 0 200 110 79 5 193 0 210 120 79 10 107 0 215 130 77 0 117 0 227 140 80 0 128 0 240 130 99 15 179 0 230 150 68 10 150 0 240 160 70 5 100 0 245 120 79 8 112 0 260 130 76 10 150 0 275 140 67 8 121 0 280 130 72 0 90 1 210 120 85 0 100 1 187 100 94 0 130 1 179 130 88 10 92 1 183 120 72 0 119 1 184 120 89 0 110 1 189 120 80 2 120 1 192 110 87 6 100 1 196 110 69 4 140 1 204 110 73 10 128 1 215 120 65 0 107 1 216 140 85 0 98 1 219 130 75 8 119 1 220 140 68 3 117 1 222 130 89 11 193 1 232 150 62 12 179 1 245 160 66 8 150 1 246 120 78 12 96 1 261 130 67 0 121 1 269 130 70 8 112 1 279 140 64 0 150 1 280 130 74

In: Math

Grayson is in the 24 percent tax rate bracket and has sold the following stocks in...

Grayson is in the 24 percent tax rate bracket and has sold the following stocks in 2018: (Loss amounts should be indicated by a minus sign.) Description Date Purchased Basis Date Sold Amount Realized Stock A 1/23/1994 $ 7,650 7/22/2018 $ 4,820 Stock B 4/10/2018 14,800 9/13/2018 18,490 Stock C 8/23/2016 11,750 10/12/2018 16,660 Stock D 5/19/2008 5,550 10/12/2018 13,000 Stock E 8/20/2018 7,580 11/14/2018 3,700 a. What is Grayson’s net short-term capital gain or loss from these transactions?

In: Accounting

I need Calculator project : A complex number calculator program that allows the user to do...

I need Calculator project :
A complex number calculator program that allows the user to do either addition, subtraction, multiplication or
division where a complex number is a number of the form a + bi where a and b are real numbers and i equals √
−1.
1. It must consist of at least five functions excluding the main function.

2. There should be a function for each operation. Each of these functions should handle checking the validity of its operands
that must be parameters of the function, perform their given operation and simplify their result. They must not perform
any form of I/O. However, the functions can have additional parameters; but, you will be responsible for deciding the
return types of these functions, which do not have to be the same.

3. There must be a calculator function that takes no parameters that is responsible for displaying a menu of the operations to
the user, receiving the choice of the user, calling the appropriate function to perform the chosen operation, and displaying
the result of the operation in the format
a + b i or a - b i

where a and b are displayed with one decimal point and the second display is for when b is negative, or an error message.
Furthermore, if the user selects an invalid option display the message ''Invalid Operation''.

a.The program should only perform at most one operation per run.
b. The main function should only call the calculator function.
c. The program cannot use loops.
d. The program can only include the libraries iostream, string, and iomanip.

In: Computer Science

In our sample of 42 students, we are interested in whether the amount of money students...

  1. In our sample of 42 students, we are interested in whether the amount of money students think a first date should cost is different based on whether they are in a romantic relationship or not. The mean amount stated by the 21 students in a relationship was $58.81, with a standard deviation of $47.17, while the 21 students not in a relationship thought first dates should cost a mean of $48.10 with a standard deviation of $24.16. State the null and alternative hypotheses, conduct the appropriate type of t test, and write a conclusion interpreting your findings.

In: Math

What is the result of the following statement? not 1 or 0 and 1 or 3...

What is the result of the following statement?

not 1 or 0 and 1 or 3 and 4 or 5 and 6 or 7 and 8 and 9

It is python logical operator (not, and, or)

I know the result is 4 by running the code, but I don't understand the logic behind it, can you explain it step by step? e.g. How to eliminate those numbers in each step to get the result.

Thanks

In: Computer Science

I need to find an interesting article related to a topic How Exceptional Managers Realize a...

I need to find an interesting article related to a topic How Exceptional Managers Realize a Grand Design

Presentations topic related to Management. Speaking about provides another chance to reinforce what’s been learned, and gives you the opportunity to develop verbal communication skills in a virtual environment, a highly sought-after skill that most employers seek today.

In: Operations Management

Describe and explain the roles of the different types of witnesses, such as the following: Lay...

Describe and explain the roles of the different types of witnesses, such as the following:

Lay witnesses

Expert witnesses

Law enforcement witnesses  

In: Psychology

Summarize how and when payments are made to beneficiaries under Medicare and Disability programs and the...

Summarize how and when payments are made to beneficiaries under Medicare and Disability programs and the qualifications for each.

In: Operations Management

Diversification merits strong consideration whenever a single-business company faces diminishing market opportunities and stagnating sales in...

Diversification merits strong consideration whenever a single-business company faces diminishing market opportunities and stagnating sales in its principal business. Identify a company you feel should diversify and explain why.

In: Operations Management

1. Due to the COVID-19 pandemic, and the stay at home order handed out by the...

1. Due to the COVID-19 pandemic, and the stay at home order handed out by the Governor and the President we have had to use MIS more. Tools like Zoom have become widely popular and have seen increased users. However, they have also had some challenges. What are some of the challenges that Zoom has faced in the last few weeks? How would you recommend solving them?

2. Companies like Microsoft, Amazon AWS and Google have built their platform for situations like what we are experiencing. How has cloud computing evolved over the years to allow us some form of continuity? Do you believe there will be a rise in companies moving to the cloud and will there be new entrants to the cloud landscape with companies offering Saas? What are some examples of SaaS?

In: Operations Management