A Pitot-static tube used to measure air velocity is connected to a differential pressure gage. If the air temperature is 20$^{\circ}C$ at standard atmospheric pressure at sea level, and if the differential gage reads a pressure difference of 2 kPa, what is the air velocity?

The gage pressure in a liquid at a depth of $2.5 \mathrm{~m}$ is read to be $28\ \mathrm{kPa}$. Find the gage pressure in the same liquid at a depth of $9 \mathrm{~m}$.

Carbon dioxide discharges from a tank through a convergent nozzle into the atmosphere. If the tank temperature and gage pressure are 38$^{\circ} \mathrm{C}$ and 140 kPa, respectively, what jet temperature, pressure, and velocity can be expected? Barometric pressure is 101.3 kPa.

The air velocity in a duct is measured by a Pitot-static probe connected to a differential pressure gage. If the air is at 13.4 psia absolute and $70^\circ F$ and the reading of the differential pressure gage is 0.15 psi, determine the air velocity.

What must the water pressure be to supply the second floor ( $18.0 \mathrm{ft}$ up) with a pressure of $50.0\ \mathrm{lb} / \mathrm{in}^2$ at that level?

The pressure in a bicycle tire is 1.34 atm at $33.0^{\circ} \mathrm{C}$. At what temperature will the pressure inside the tire be 1.60 atm? Volume is constant.

A pressure cooker is a sealed container that allows steam to escape when it exceeds a predetermined pressure. How does this device reduce the time needed for cooking?

How does the solubility of a gas in a liquid depend on pressure? How does this pressure dependence account for the bubbling that occurs upon opening a can of soda?

The atmospheric pressure p on an object decreases with increasing height. This pressure, measured in millimeters of mercury, is related to the height h (in kilometers) above sea level by the function $p(h)=760 e^{-0.145 h}.$ Find the height of a mountain if the atmospheric pressure is 667 millimeters of mercury.

The rate of change of atmospheric pressure $P$ with respect to altitude $h$ is proportional to $P$, provided that the temperature is constant. At $15^{\circ}C$ the pressure is 101.3 kPa at sea level and 87.13 kPa at $h = 1000 \text{ m}$. What is the pressure at the top of Mount McKinley, at an altitude of 6187 m?

Solve each problem. The pressure exerted by a certain liquid at a given point varies directly as the depth of the point beneath the surface of the liquid. The pressure at 10 ft is 50 pounds per square inch (psi). What is the pressure at 15 ft?

Earth's atmospheric pressure $p$ is often modeled by assuming that the rate $d p / d h$ at which $p$ changes with the altitude $h$ above sea level is proportional to $p$. Suppose that the pressure at sea level is $1013$ millibars (about $14.7$ pounds per square inch) and that the pressure at an altitude of $20 \mathrm{~km}$ is $90$ millibars.

What is the atmospheric pressure at $h=50 \mathrm{~km}$ ?

The atmospheric pressure p on an object decreases with increasing height. This pressure, measured in millimeters of mercury, is related to the height h (in kilometers) above sea level by the function $p(h)=760 e^{-0.145 h}$ Find the height of an aircraft if the atmospheric pressure is 320 millimeters of mercury.

The deepest ocean trench is about $10.9 \mathrm{~km}$ deep. Find the pressure at this depth. (b) How many times larger than atmospheric pressure is this?