Refer to the graph in the earlier figures to answer the following:

a. Approximately how much does the air pressure drop (in millibars) between the surface and 4 kilometers? (Use a surface pressure of 1000 millibars.)

b. How much does the pressure drop between 4 and 8 kilometers?

c. Based on your answers to parts a and b, answer the following: With an increase in altitude, air pressure decreases at a(n) (constant, increasing, decreasing) rate. Underline the correct answer.

A sealed cylinder contains a sample of ideal gas at a pressure of $2.0 \mathrm{~atm}$. The rms speed of the molecules is $v_0$. If the rms speed is then reduced to $0.90 v_0$, what is the pressure of the gas?

1.00 L of a gas at standard temperature (273 K) and pressure (1 atm) is compressed to 0.473 L. What is the new pressure of the gas?

A fan is observed to operate with a pressure difference of 4 in. of water. What is the pressure difference in SI units and terminology?

At what depth beneath the surface of the lake is the pressure in the water equal to twice atmospheric pressure? a. $~$ $10 \mathrm{~m}$ b. $~$ $100 \mathrm{~m}$ c. $~$ $1000 \mathrm{~m}$ d. $~$ $10,000 \mathrm{~m}$

A tank with a flat bottom of area A and vertical sides is filled to a depth h with water. The pressure is Po at the top surface.

(a) What is the absolute pressure at the bottom of the tank?

(b) Suppose an object of mass M and density less than the density of water is placed into the tank and floats. No water overflows.

What is the resulting increase in pressure at the bottom of the tank?

Which of the following is true about early- and late-maturing adolescents?

a. Early-maturing boys are more likely to be agitated and ill-natured.

b. Early-maturing boys are often dominated by late-maturing boys.

c. Early-maturing girls become conspicuous with their height and development of their breasts.

d. Early-maturing girls are at less risk for psychological problems and substance abuse.

We have learned that a lack of prenatal care increases the risk of premature delivery and possible health problems for the infant.

Visit the USDA website (www.usda.gov) and read about WIC. After reading about WIC, do you think this is something that could help Joan with the raising of her child? Why or why not?

Which of the following statements is not correct?

a. Over 70 million Americans are sleep deprived.

b. Young adults (under age 24 ) are the most sleep-deprived population in America.

c. Over 45 percent of the world's population suffer from some form of sleep deprivation.

d. The highest risk for drowsydriving accidents is among males aged 17 to 23 .

Choose the appropriate phrase from the given below for the term "anorexia athletica" .

a. best measure of body composition

b. used to measure skinfolds

c. condition associated with health risk factors

d. energy your body uses just to keep you living

e. eating disorder most common among performers

The pressure 45.0 meters under water is 543 kPa. What is this pressure in atm?

Choose the appropriate phrase from the given below for the term "DXA" .

a. best measure of body composition

b. used to measure skinfolds

c. condition associated with health risk factors

d. energy your body uses just to keep you living

e. eating disorder most common among performers

A pressure cooker contains 5.68 liters of air at a temperature of 394K. If the absolute pressure of the air in the pressure cooker is 205 Pascals, how many moles of air are there in the cooker?

Compare the various methods of hemodynamic monitoring (e.g., central venous pressure, pulmonary artery pressure, and arterial pressure monitoring) with regard to indications for use, potential complications, and nursing responsibilities.