Questions
See-Saw. A 4.00-m see-saw of mass 60.0 kg is pivoted at the center. A 12.0-kg boy...

See-Saw. A 4.00-m see-saw of mass 60.0 kg is pivoted at the center. A 12.0-kg boy sits on the left side of the plank, such that his center of gravity is exactly on the edge. His friend sits on the right side of the plank, with her center of gravity 15.0 cm (0.150m) from the edge. At this configuration, the system is in static equilibrium.
(a) What are the magnitudes of their moment arms about the point of support?
(b) What is the mass of the girl?
(c) How much weight is being applied by the point of support?

In: Physics

Jack, a 10-year old boy, is riding his bicycle on the way home. Suddenly, a dog...

Jack, a 10-year old boy, is riding his bicycle on the way home. Suddenly, a dog ran in front of his path, causing him to swerve towards the canal. Jack fell through the canal and his bicycle landed on top of him. The emergency room physician took his x-ray and later on informed Jack’s parents that their son had a closed fractured on his right arm.

Instructions:
1. Complete an APIE for Jack
2. Create Nursing Diagnosis for Jack
3. Create a Teaching Plan for Jack

In: Nursing

15. A small school has 24 boys graduating. Half of them are funny and 7 are...

15. A small school has 24 boys graduating. Half of them are funny and 7 are good dancers. Eight of them are neither funny nor good dancers. One boy is selected at random. Translate the following into conditional probability notation, and then find the probabilities:
a) Probability he is a good dancer given that he is funny.
b) Probability he is funny given that he is a good dancer.
c) If he is a good dancer, what is the probability he is not funny? d) If he is not a good dancer, what is the probability he is funny?

In: Statistics and Probability

William is an 17-year old boy who arrived in the emergency room. He was playing football...

William is an 17-year old boy who arrived in the emergency room. He was playing football and during a tackle an opposing player drove his helmet into William's abdominal area. William complained of pain in his left side and had visible signs of shock including: anxiety, nausea, and a pale complexion, with a hard and distended abdominal area. As a result of the injury and symptoms, William underwent a splenectomy. What consequence(s), if any, apply in the future for this patient as an end-result of this operation? What is the role of the spleen in fighting infection?

In: Biology

Fly Boy Company manufacturers fishing rods with a Variable manufacturing cost of $35. Budgeted (and actual)...

Fly Boy Company manufacturers fishing rods with a Variable manufacturing cost of $35. Budgeted (and actual) fixed man. overhead for the most recent year was $400,000. Budgeted(and actual) production was 25,000 units and sales were 20,000 units. Which of following statements was true.

Operating income is higher under absorption by $80000

Operating income is lower under absorption by $80000

Operating income is higher under absorption by $100000

Operating income is Lower under absorption by $100000

Operating income is the same under both variable and absorpton

In: Accounting

1.     In the summer of 2016, a large anthrax outbreak struck Siberia. Dozens of people were...

1.     In the summer of 2016, a large anthrax outbreak struck Siberia. Dozens of people were hospitalized, and a 12-year-old boy died. It was determined that it was caused by a heat wave in the Arctic which thawed a thick layer of the permafrost, warming a bunch of reindeer carcasses. The animals had died of anthrax 70 years previously. How could this have led to the 2016 outbreak?

2.     If the reindeer had been infected with Mycobacterium tuberculosis instead do you believe that the same scenario might have occurred?

In: Biology

Charlie is a 14-year-old boy, 5 feet tall and weighing 100 lbs. He had a juvenile...

Charlie is a 14-year-old boy, 5 feet tall and weighing 100 lbs. He had a juvenile criminal history. He was arrested and put in an adult prison for shooting and killing Charlie, his mother’s boyfriend George, who also was a local police officer. George had a history of physically and psychologically abusing Charlie’s mother and enacting physical and psychological trauma on Charlie.

1) analyze the physical and psychological trauma that Charlie experienced.

2) Briefly explain how you would engage and assess him for trauma.

In: Psychology

4. A random sample of 860 births at St. Jude’s Hospital included 426 boys. The national...

4. A random sample of 860 births at St. Jude’s Hospital included 426 boys. The national proportion of newborn boy babies is 51.2%. Use a 0.01 significance level to test the claim that the proportion of newborn boy babies at this hospital is different than the national average.

a. Draw a normal curve for the sampling distribution for samples of size 860 births. Label the mean and the values for one, two and three standard deviations above and below the mean.

b. Construct a hypothesis test using a significance level of α=0.01. Be sure to show all your calculations, including your test statistic and your calculated P-value. Be sure to clearly argue your conclusion.

i. Is this problem about means or proportions?

ii. What is the most appropriate test, a two-tailed test, a right-tailed test, or a left- tailed test?

iii. What is your null hypothesis? iv. What is your alternative hypothesis? v. What is the value of the test statistic? Please mark the test statistic on your normal curve.

vi. What is the P-value?

vii. What is your decision? Do you reject or not reject ?0?

viii. What is your conclusion? (What does your decision translate to in words? To write your conclusion, please use the conclusion language that was discussed in class.)

c. Construct a 95% confidence interval for the given sample.

In: Statistics and Probability

To what extent do syntax textbooks, which analyze the structure of sentences, illustrate gender bias? A...

To what extent do syntax textbooks, which analyze the structure of sentences, illustrate gender bias? A study of this question sampled sentences from 10 texts. One part of the study examined the use of the words "girl," "boy," "man," and "woman." We will call the first two words juvenile and the last two adult. Is the proportion of female references that are juvenile (girl) equal to the proportion of male references that are juvenile (boy)? Here are data from one of the texts:

Gender n X(juvenile)
Female 63 48
Male 134 50

(a) Find the proportion of juvenile references for females and its standard error. Do the same for the males. (Round your answers to three decimal places.)

Answers:

F =
SEF =
M =
SEM =


(b) Give a 90% confidence interval for the difference. (Do not use rounded values. Round your final answers to three decimal places.)

( ______ , _____ ) Answers



(c) Use a test of significance to examine whether the two proportions are equal. (Use FM. Round your value for z to two decimal places and round your P-value to four decimal places.)

Answers :

z =
P-value =


State your conclusion.

___There is not sufficient evidence to conclude that the two proportions are different.

___There is sufficient evidence to conclude that the two proportions are different.    

THANK YOU :)

In: Math

search the file "myfile.txt" for any occurrences of "Some target string" and print the lines where...

search the file "myfile.txt" for any occurrences of "Some target string" and print the lines where the string is found.

In this assignment, write your own java version of this program:

  1. Name the program LastnameFirstname1 (this is not really an appropriate name for such a program, but following this convention greatly eases the grading process). Example: WhiteMax1
  2. Allow the user to specify the string they are searching for and the file they wish to search with command line arguments. To replicate the above findstr and grep examples, the program would be executed with the following command: java WhiteMax1 "Some target string" myfile.txt  (for help using command line arguments, see this article).
  3. Search each line of the file for the target string. For every occurrence found, first print out the line number where it has been found, the index of the target string's start position in that line, and the entire line itself. For example, searching line 5, "My dog is a good boy" for the target string "dog" would print: 5:3 My dog is a good boy   (If no occurrences are found, nothing needs to be printed. If multiple occurrences are found in the same line, print the line multiple times with each index position. File line numbers start at 1, not 0)

To complete this assignment you will need to use Scanner, File, and String. Consider reviewing the documentation for these classes. The attached file is provided as an example text file for developing and testing your program.

In: Computer Science