The deepest point in the ocean is 11 km below sea level, deeper than Mt. Everest is tall. What is the pressure in atmospheres at this depth?

If you dive underwater, you notice an uncomfortable pressure on your eardrums due to the increased pressure. The human eardrum has an area of about $70 \mathrm { mm } ^ { 2 } \left( 7 \times 10 ^ { - 5 } \mathrm { m } ^ { 2 } \right)$, and it can sustain a force of about 7 N without rupturing. If your body had no means of balancing the extra pressure (which, in reality, it does), what would be the maximum depth you could dive without rupturing your eardrum? A. 0.3 m B. 1 m C. 3 m D. 10 m

A 100 mL beaker holds 120 g of liquid. What is the liquid's density in SI units?

Air enclosed in a sphere has density $\rho = 1.4 \mathrm { kg } / \mathrm { m } ^ { 3 }$. What will the density be if the radius of the sphere is halved, compressing the air within?

Calculate the buoyant force due to the surrounding air on a man weighing 800 N. Assume his average density is the same as that of water.

A 68 kg college student's body has a typical density of 1050 $\mathrm{kg} / \mathrm{m}^2$. What is his volume?

The highest that George can suck water up a very long straw is 2.0 m. (This is a typical value.) What is the lowest pressure that he can maintain in his mouth?

A 35-cm-tall, 5.0-cm-diameter cylindrical beaker is filled to its brim with water. What is the downward force of the water on the bottom of the beaker?

How do aging-related changes in the cardiovascular system affect the kidneys?

Of the homes listed with a real estate agency, half are singlefamily dwellings, and $46 \%$ of these are centrally air-conditioned; $35 \%$ are twofamily homes, and $15 \%$ of these are centrally air-conditioned; and $15 \%$ are townhouses, all of which are centrally air-conditioned.

Find the probability that a house that is centrally air-conditioned is a townhouse

Use the bubble sort to sort d, f, k, m, a, b, showing the lists obtained at each step.

State whether the following function is increasing, decreasing, or neither:

Height above Earth's sea level as a function of atmospheric pressure (assumed nonzero)

Show that the given signal is a solution of the difference equation. Then find the general solution of that difference equation. $y_{k}=2-2 k ; y_{k+2}-\frac{9}{2} y_{k+1}+2 y_{k}=2+3 k$.

Simplify the given exercise below:

$$\sum_{k=0}^{10}(-1)^k\left(\begin{array}{c} 10 \\ k \end{array}\right)(\log x)^{10-k}(\log y)^k .$$