Questions
The production of sound during speech or singing is a complicated process. Let's concentrate on the...

The production of sound during speech or singing is a complicated process. Let's concentrate on the mouth. A typical depth for the human mouth is about 7.4 cm , although this number can vary. (Check it against your own mouth.). We can model the mouth as an organ pipe that is open at the back of the throat.

a) What are the wavelengths of the first four harmonics you can produce if your mouth is open?

Express your answers in centimeters separated by commas.

b) What are the frequencies of the first four harmonics you can produce if your mouth is open? Use 351 m/sm/s for the speed of sound.

Express your answer in hertz separated by commas.

c) What are the wavelengths of the first four harmonics you can produce if your mouth is closed?

Express your answers in centimeters separated by commas.

d) What are the frequencies of the first four harmonics you can produce if your mouth is closed? Use 351 m/sm/s for the speed of sound.

Express your answer in hertz separated by commas.

In: Physics

PLEASE TYPE all work, and I'll give you a thumbs up! Mean of stock price =...

PLEASE TYPE all work, and I'll give you a thumbs up!

Mean of stock price = 1117.64

STDEV (Population) = 67.61

  1. If a person bought 1 share of Google stock within the last year, what is the probability that the stock on that day closed within $50 of the mean for that year (round to two places)? (Hint: this means the probability of being between 50 below and 50 above the mean).

  2. If a person bought 1 share of Google stock within the last year, what is the probability that the stock on that day closed at less than $1050 per share (round to two places)? Would this be considered unusual? Use the definition that an unusual value is more than 2 standard deviations above or below the mean.

  3. At what prices would Google have to close in order for it to be considered statistically unusual or statistically significant outliers? You will have a low and high value. There are several possible definitions for unusual in statistics, but for our project let's use the definition that an unusual value is more than 2 standard deviations above or below the mean.

In: Statistics and Probability

You are . . . an orthopedic technologist working with Kenneth Stannard, MD, at Fulwood Medical...

You are

. . . an orthopedic technologist working with Kenneth Stannard, MD, at Fulwood Medical Center.

Your patient is

. . . James Fox, a 17-year-old male who complains of severe pain in his right wrist. While playing soccer a few hours earlier, he fell. James pushed his hand out to break his fall and heard his wrist snap. The wrist is now swollen and deformed.

VS are T 98.2, P 92, R 15, BP 110/76. On examination, his right wrist is swollen and tender and has a dinner-fork deformity. An IV has been started, and he has been given 3 mg of morphine IV. An x-ray of the wrist was ordered which reveals a closed Colles Fx.

In your initial post answer the following:

  • What type of physician is Dr. Stannard?
  • The fracture has been described as closed: What is its complexity?
    • Does it require surgery?
  • What does the abbreviation Fx mean?
  • Why was James given morphine?
  • In a Colles Fx, what is a bone that is likely affected?

In: Nursing

Imagine this is your first day as Senior Chief Information Security Officer (CISO) of Company A....

Imagine this is your first day as Senior Chief Information Security Officer (CISO) of Company A. The Chief Financial Officer (CFO) calls you wondering what should have been done differently during a recent incident involving your predecessor. The following incidents recently occurred and were closed out without any alert to senior staff or the CFO.

The Chief Financial Officer’s admin reported that their laptops were performing erratically and many popup screens kept appearing while browsing the Internet. Upon inspection, it was found that the laptops were infected with malware and computer viruses. As the users were the CFO’s direct subordinates, the service desk decided to respond quickly. However, the service desk did not report the incident up the chain. As soon as the malware was removed, the service desk closed the ticket.

Based on the above information, respond to the following questions:

  • What policies or procedures appear to be missing or are not being followed?
  • What management style or styles should the CISO adopt in dealing with the service desk?
  • How would you recommend the organization to respond to similar incidents in the future?

In: Computer Science

Amar Ltd furnishes the following information relating to budgeted sales and actual sales for the month...

Amar Ltd furnishes the following information relating to budgeted sales and actual sales for the month of March 2010.

PRODUCT STANDARD UNITS STANDARD RATE (INR) ACTUAL UNITS ACTUAL RATE (INR)
A 1200 15 880 18
B 800 20 880 20
C 2000 40 2640 38

calculate :

(a) Sales price variance

(b) Sales volume variance

(c) Sales mix variance

(d) Sales quantity variance

In: Accounting

Can you predict the life expectancy for an individual born in the United States in certain...

Can you predict the life expectancy for an individual born in the United States in certain years?
Year of Birth: 1950; 1965; 1973; 1982; 1987; 1992; 2010; 2015
Life Expectancy: 70.2; 69.3; 71.4; 74.5; 75; 75.7; 78.7, 79.2


If you can make predictions, when year of birth is 1990, what is the life expectancy? Please answer in a whole number.
If you can’t make a prediction, put the word "none" in the answer box.

In: Statistics and Probability

In 2010, the Dodd-Frank Wall Street Reform and Consumer Protection Act ("Dodd-Frank”) was signed into federal...

In 2010, the Dodd-Frank Wall Street Reform and Consumer Protection Act ("Dodd-Frank”) was signed into federal law. Under this Act, whistleblowers that bring violations of securities & commodities law, or the Foreign Corrupt Practices Act (FCPA) to the attention of the proper government authorities are entitled to between 10% to 30% of any government recovery in excess of $1 million. Do you believe it is appropriate/ethical for the government to incentivize reporting fraud and other wrongdoings in return for a monetary reward?

In: Accounting

How much energy is required to change a 52 g ice cube from ice at −9...

How much energy is required to change a 52 g ice cube from ice at −9 ◦C to steam at 106◦C? The specific heat of ice is 2090 J/kg · ◦ C and of water 4186 J/kg · ◦ C. The latent heat of fusion of water is 3.33 × 105 J/kg, its latent heat of vaporization is 2.26 × 106 J/kg, and the specific heat of steam is 2010 J/kg · ◦ C. Answer in units of MJ.

In: Physics

How's the economy? A pollster wants to construct a 99.5% confidence interval for the proportion of...

How's the economy? A pollster wants to construct a 99.5% confidence interval for the proportion of adults who believe that economic conditions are getting better.

(a) A poll taken in July 2010 estimates this proportion to be 0.3 Using this estimate, what sample size is needed so that the confidence interval will have a margin of error of 0.02?

A sample of adults is needed to obtain a 99.5% confidence interval with a margin of error of 0.02
.

B. Estimate the sample size needed if no estimate of p is available.

In: Statistics and Probability

U.S. Civilian Labor Force (thousands) Year Labor Force Year Labor Force 2007 153,918 2012 155,628 2008...

U.S. Civilian Labor Force (thousands)
Year Labor Force Year Labor Force
2007 153,918 2012 155,628
2008 154,655 2013 155,151
2009 153,111 2014 156,238
2010 153,650 2015 157,957
2011 153,995 2016 159,640

(d) Make forecasts using the following fitted trend models for years 2017-2019. (Round your answers to the nearest whole number.)

t Linear Quadratic Exponential
11
12
13

In: Statistics and Probability