AP Physics 2 › Pressure
Suppose that a barometer is filled with water, as shown in the diagram below. If this barometer's column has a height of , what would be the height of a barometer that used mercury instead of water?
Note: Mercury has a specific gravity of .
Suppose that you accidentally let go of a helium balloon, and it begins to rise higher and higher into the sky. The balloon will continue to rise until which of the following takes place?
A U-shaped tube is filled with water, however the openings on either ends have different cross-sectional areas of and
. If a force of
is applied to the opening that is
in area, how much force will be exerted on the other end of the tube?
Paul weighs . What must be the surface area of his shoe if he uses it to try to kill an ant? Assume the shoe applies uniform force, he can only apply as much force as his weight, and his other foot is not in contact with the ground. The ant cannot withstand any pressure greater than
.
Suppose that a force of is acting upon a surface of area
. What is the resulting pressure that is acting on this surface?
At what depth within a salt water solution will the gauge pressure be equal to three times the atmospheric pressure?
Suppose that a person is swimming in the ocean, which has saltwater with a density of . If this person swims to a depth of 5m below the surface of the water, how much pressure does this swimmer experience?
Calculate the difference in pressure, , between the surface of a lake and a depth of
below the surface.
A cube with a mass of and sides of length
rests on a table. What pressure does this cube exert on the table?
Someone who is down on their luck throws a dime down a deep well. At time , the dime's velocity is immediately reduced to
as it hits the water and begins accelerating down at a rate
. How much time has passed when the hydrostatic pressure on the coin is
?