A metallic airfoil of elliptical cross section has a mass of 50 kg, surface area of $12 m^2,$ and a specific heat of $0.50 kJ/kg \cdot K.$ The airfoil is subjected to air flow at 1 atm, $25^\circ C,$ and 5 m/s along its 3-m-long side. The average temperature of the airfoil is observed to drop from $160^\circ C$ to $150^\circ C$ within 2 min of cooling. Assuming the surface temperature of the airfoil to be equal to its average temperature and using momentum-heat transfer analogy, determine the average friction coefficient of the airfoil surface.

Write the letter for the word that best completes each sentence.

In some situations, making even the softest $\rule{1cm}{0.15mm}$ can be highly inappropriate.

a. discourse

b. utterance

c. circumlocution

d. sophistry

Using the exhibit of this chapter as a guide, determine whether a debit or credit decreases the normal balance of the account shown below:
 Salaries Expense

For this exercise, describe how to use random numbers to do a simulation for the given situation below.

A basketball player makes 80% of her free throw attempts. Find the average number of free throw attempts needed in order to make 3 free throws in a row.

A local fast-food company claims that the average salary of its employees is $\$ 13.23$ per hour. An employee states that most employees make minimum wage. If both are being truthful, how could both be accurate?

Write a program that calculates the amount a person would earn over a period of time if his or her salary is one penny the first day, two pennies the second day, and continues to double each day. The program should display a table showing the salary for each day, and then show the total pay at the end of the period. The output should be displayed in a dollar amount, not the number of pennies.

Input Validation: Do not accept a number less than $1$ for the number of days worked.

Answer the questions that follow about Pro-Med's weekly payroll.

The manager, Audrey Naumoff, is paid an annual salary of $\$ 74,000$ a year. What is her monthly gross pay, rounded to the nearest dollar?

The pipe has a mass of $12$kg/ m .If it is fixed to the wall at $A$ , determine the resultant internal loadings acting on the cross section at $B .$

Exeter is a building contractor on the Gulf Coast. After losing a number of big lawsuits, it was facing its first annual net loss as the end of the year approached. The owner, Hank Snow, was under intense pressure from the company's creditors to report positive net income for the year. However, he knew that the controller, Alice Li, had arranged a short-term bank loan of $10,000 to cover a temporary shortfall of cash. He told Alice to record the incoming cash as "construction revenue" instead of a loan. That would nudge the company's income into positive territory for the year, and then, he said, the entry could be corrected in January when the loan was repaid.

Requirements

1. How would this action affect the year-end income statement? How would it affect the year-end balance sheet?
2. If you were one of the company's creditors, how would this fraudulent action affect you?

Show that the binomial coefficient ${pn \choose pi}$ is the coefficient of $x^{pi}$ in the expansion of $(1+x)^{pn}$. Working over $\mathbb{F}_p$ show that this is the coefficient of $(x^p)^i$ in $(1+x^p)^n$ and hence prove that ${pn \choose pi}\equiv {n \choose i}\pmod{p}$.

A job pays a salary of $\$ 32,000$ the first year. During the next 39 years, suppose there is a $5.5 \%$ raise each year. What would be the total amount earned over the 40-year period?

Employee C is Paid an hourly rate of $13.25$ per hour and works $2080$ hours per year. The employee was just promoted and received a $15\%$ raise. What is the employee’s new yearly salary?

The Beaufort scale is a numerical scale that indicates wind speed. On this scale, 0 represents calm or no wind, and 12 represents a hurricane. The function $v=1.87 B^{1.5}$ can be used to determine the wind speed v in mi/h, where B is the Beaufort scale number. What is the wind speed during a strong gale that measures 9 on the Beaufort scale?

What information sources do you think students on your campus use when acquiring movies? Consider the various information sources listed previously in developing your answer. In your opinion, will there be individual differences? Explain why.