Converting gravity into pressure inside the very center of a planet

  • #1
lexdean
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Homework Statement
We know IO Jupiter's moon creates heat as gravity changes. The volume of atoms must play a role in the amount of gravity some how. So mass, gravity volume and pressure in the very center of a planet must relate to rach other some how.
Relevant Equations
Ms2 = psi = mass
Gravity in the very center of the planet must be zero because all other atoms are pulling evenly around the center.
We have a deap gold mine in South Africa and uranium waste storage Norway.
Has the force of gravity shown change at these depths. Even at the bottom of the Pacific ocean gravity must have been measured. Is Earth's crus
And has this type of study made a relationship as different planets have different desitys.
Even the different types of atoms in a planet must make changes to the results. Our plant's atmosphere is bonbarded with solar rays that a balance between gravity and the strength of solar ray bonbardment must be related unless our atmosphere is still growing that I dealt.

So the question I should first ask is what is known.
 
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  • #2
lexdean said:
Gravity in the very center of the planet must be zero because all other atoms are pulling evenly around the center.
Acceleration due to gravity is zero, yes.

lexdean said:
We have a deap gold mine in South Africa and uranium waste storage Norway.
Has the force of gravity shown change at these depths. Even at the bottom of the Pacific ocean gravity must have been measured. Is Earth's crus
Yes, we can measure changes in gravity in depressions in the Earth.
lexdean said:
- different planets have different densities
- different types of atoms in a planet
These are all factors that are included in the planet's mass.
The other thing that affects your wight on the surface* is the radius of the planet.

*and, I suppose, whether it has a surface to speak of
 
  • #3
lexdean said:
So the question I should first ask is what is known.
About what ? Most of your ramblings seem rhetorical.

Io's heat is a result of lots and lots of external gravity sources.

Yes, your "solar rays" push the Earth into a slightly higher orbit than it would be, without ... say half a kilometre ? Total guess. You want a seriously impressive example, look up how stars work, particularly supernovae.

ps: spellcheck and proofread. And, why is it in the Homework section ?
 
  • #4
lexdean said:
We know IO Jupiter's moon creates heat as gravity changes.

Has the force of gravity shown change at these depths.
The heat is generated in Io by changing external fields which squeeze it in changing directions.
The excess heat within the Earth (compared to the surface) is mostly a result of two causes:
  • Primordial heat from the gravitational energy released as the Earth formed from the solar system’s protoplanetary disc.
  • Decay of radioactive elements within the Earth.
As Lord Kelvin showed, if it were not for the latter there'd be little primordial heat left.

For neither body is the heat in any way a result of how the body's gravitational field varies with depth.
 
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FAQ: Converting gravity into pressure inside the very center of a planet

What is the relationship between gravity and pressure at the center of a planet?

Gravity causes the material within a planet to be pulled towards the center, resulting in an increase in pressure with depth. At the center of a planet, the pressure is at its maximum due to the weight of the overlying material being compressed by gravity.

How do scientists calculate the pressure at the center of a planet?

Scientists use mathematical models and equations derived from the principles of hydrostatic equilibrium and the equations of state for planetary materials. These models take into account the planet's mass, radius, and the distribution of its density to estimate the central pressure.

What factors influence the pressure at a planet's core?

The pressure at a planet's core is influenced by the planet's size, mass, and composition. Larger and more massive planets typically have higher central pressures. Additionally, the type of materials present and their physical properties, such as density and compressibility, also play a significant role.

How does pressure affect the physical state of materials at a planet's center?

At extremely high pressures, such as those found at the center of a planet, materials can exist in different physical states than they do at the surface. For example, materials may become more dense, and elements like iron may exist in a solid or liquid state depending on the temperature and pressure conditions.

Can the pressure at the center of a planet be directly measured?

Direct measurement of the pressure at the center of a planet is currently not possible due to the extreme conditions and inaccessibility. Instead, scientists rely on indirect methods, such as seismic data, laboratory experiments replicating high-pressure conditions, and theoretical models to estimate central pressures.

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