That is to say, there is a balance between the gravitational force and the pressure gradient force, and this is known as hydrostatic balance. The balance holds exactly only when the fluid is not moving (hence the "static" in hydrostatic), but in Earth's atmosphere and ocean, it holds to a good approximation even when the fluid is moving.
What is hydrostatic balance?
What is the state where the gravitational acceleration balances the vertical component of the pressure gradient force?
Does pressure decrease on the right side of the ocean?
What two forces comprise the hydrostatic balance?
The direction of the gravitational force points toward the Earth's core (downward from the surface) and thus gravity is a force on the air acting to push it toward the ground. These two forces when equally balanced is termed “hydrostatic balance”.
Which two forces are in a balance giving the Sun hydrostatic equilibrium?
This is an example of hydrostatic equilibrium, a balance between pressure and gravity.
What are two forces that must balance in a Sun?
Two forces act on the Sun. One is the inward gravitational pressure of the Sun's mass. The other is the outward pressure from heat generated in its interior. The Sun remains stable because these two forces are in gravitational equilibrium.
What is hydrostatic balance in science?
Hydrostatic Balance is the state where the gravitational acceleration balances the vertical component of the pressure gradient force. The value of the hydrostatic pressure at depth in a fluid (where ) is. The hydrostatic pressure gradient has only a vertical component, equal to.
What causes hydrostatic equilibrium?
Hydrostatic equilibrium occurs when compression due to gravity is balanced by a pressure gradient which creates a pressure gradient force in the opposite direction. The balance of these two forces is known as the hydrostatic balance.
What is hydrostatic equilibrium in the Sun?
The structure of the sun adjusts until the gravitational "pull" towards its center is just balanced by the "push" of the gas pressure outward. Fortunately, this results in a very stable state, called hydrostatic equilibrium.
What are the two forces that act on the orbit of a planet?
The gravity of the sun and the planets works together with the inertia to create the orbits and keep them consistent. The gravity pulls the sun and the planets together, while keeping them apart. The inertia provides the tendency to maintain speed and keep moving.
What opposing forces are balanced in the Sun?
The force of Gravity and thermal pressure produced by hot gases are opposite in direction which is used to balance the sun. The gravity is used to pull the sun in an inward direction and the pressure pushes the sun outward. Thus, the sun remains stable.
Which of the following two forces that act on any star to Maintainits stability?
A Star's Life: A star's life is an extended battle between two opposing forces: gravity and pressure. A star can maintain its internal pressure only if it continually generates energy to replace the energy that it radiates into space.
What is a hydrostatic force?
Hydrostatic forces are the resultant force caused by the pressure loading of a liquid acting on submerged surfaces. Calculation of the hydrostatic force and the location of the center of pressure are fundamental subjects in fluid mechanics.
What is hydrostatic equilibrium quizlet?
What is hydrostatic equilibrium? it is the explanation that: every layer inside of a star must be in a pressure balance between gravity which wants to pull the has inward and some kind of internal pressure which wants to push the gas outward.
What is hydrostatic equilibrium in a star quizlet?
A star is in hydrostatic equilibrium when the outward push of pressure due to core burning is exactly in balance with the inward pull of gravity. When the hydrogen in a star's core has been used up, burning ceases, and gravity and pressure are no longer in balance. This causes the star to undergo significant changes.
What two forces are balanced in what we call hydrostatic equilibrium quizlet?
Terms in this set (16) The structure of the Sun is a matter of balance between the pressure outward and the force of gravity inward: this balance is known as hydrostatic equilibrium.
What opposing forces are balanced in the Sun?
The force of Gravity and thermal pressure produced by hot gases are opposite in direction which is used to balance the sun. The gravity is used to pull the sun in an inward direction and the pressure pushes the sun outward. Thus, the sun remains stable.
What two forces are responsible for giving the solar system the shape that it has today?
Gravity Working with Inertia The planets want to keep moving in a straight line because of the physics of inertia. However, the gravitational pull wants to change the motion to pull the planets into the core of the sun. Together, this creates a rounded orbit as a form of compromise between the two forces.
What is hydrostatic equilibrium quizlet?
What is hydrostatic equilibrium? it is the explanation that: every layer inside of a star must be in a pressure balance between gravity which wants to pull the has inward and some kind of internal pressure which wants to push the gas outward.
What is a hydrostatic balance that Galileo invented? - Answers
The hydrostatic balance was an accurate balance that could weigh objects both in water and in the air. Galileo got the idea from the "Eureka" story about Archimedes and the King of Syracuse's ...
hydrostatic balance | meteorology | Britannica
Other articles where hydrostatic balance is discussed: climate: Characteristics: The atmosphere is mainly in hydrostatic balance, or equilibrium, between the upward-directed pressure gradient force and the downward-directed force of gravity. This circumstance is expressed in the following relationship: ∂p/∂z = –ρg (1) where ∂p/∂z is the partial derivative of p with respect to z, p ...
The Galileo Project | Science | Hydrostatic Balance
Hydrostatic Balance. The "Eureka" story about Archimedes and the bath tub was as well known in Galileo's day as it is in ours. Galileo, who was a great admirer of Archimedes and adopted many of his methods, probably read it in one of the editions of Vitruvius's The Ten Books on Architecture, which was very popular in Renaissance Europe.
What forces determine hydrostatic balance?
There are 3 forces that determine hydrostatic balance: One force is downwards (negative) onto the top of the cuboid from the pressure, p, of the fluid above it. It is, from the definition of pressure.
What are the forces in balance?
There are three forces in balance, the downward pressure force, which is pressure times area in the parcel's top , and an upward pressure force on the parcel's bottom, and the downward force of gravity actually on the parcel's mass, which is just the acceleration due to gravity times the parcel's density times it's volume.
How is the atmosphere's pressure structure determined?
The atmosphere’s basic pressure structure is determined by the hydrostatic balance of forces. (link is external) . To a good approximation, every air parcel is acted on by three forces that are in balance, leading to no net force. Since they are in balance for any air parcel, the air can be assumed to be static or moving at a constant velocity.
Can we integrate both sides to get the altitude dependence of p?
We could integrate both sides to get the altitude dependence of p, but we can only do that if T is constant with height. It is not, but it does not vary by more than about ±20%. So, doing the integral,
Does atmospheric pressure change with height?
From Equation 2.20, the atmospheric pressure falls off exponentially with height at a rate given by the scale height.
Answer
But what exactly is meant by the phrase unbalanced force? What is an unbalanced force? In pursuit of an answer, we will first consider a physics book at rest on a tabletop. There are two forces acting upon the book. One force - the Earth's gravitational pull - exerts a downward force.
New questions in Environmental Sciences
The mineral W is essential for the proper functioning of a gland X situated in our neck which controls the growth of the body whereas mineral why is n … eeded to make a substance present in red blood cells what our WXY and Z
What is hydrostatic balance?
Schematic for hydrostatic balance, i.e. a vertical force balance between the gravitational acceleration, g, and the vertical components of the PGF.
What is the state where the gravitational acceleration balances the vertical component of the pressure gradient force?
Hydrostatic Balance is the state where the gravitational acceleration balances the vertical component of the pressure gradient force.
Does pressure decrease on the right side of the ocean?
Since the right side is always a negative number, pressure decreases as we move upwards (to greater values of z) within the ocean.
