Justification of Newton's model

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In summary, the conversation discusses a model created by Newton to predict the difference in tides caused by the attraction of the Sun and Moon. This model involves two vertical tubes filled with water and assumes a constant density of water. The validity of this model is questioned, as it neglects the non-uniform solid core of the Earth and is based on assumptions. However, it is believed to be accurate based on its success in predicting tides.
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neelakash
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There is a model devised by Newton to predict the difference in the height of the tides (as observed from the earth) due to the attraction of Sun/moon.It is well known.Here we pretend that two tubes,filled up of water runs from the surface to the centre of the earth.They are taken as perpendicular.Hence using npn-inertial frame of the earth,the difference is found.density of water is assumed constant.

To what extent it is justified?What right do we have to assume this superficial model?
All we can say if a model be prepared like this,for it the equilibrium tide-hight difference will be ...
Can you please make it clear?
 
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  • #2
I'm not following you - "What right"? What does that mean? We believe Newon's model becaus it works. You can derive it from Newton's gravity equation.
 
  • #3
My question is why does it work at all?We are simply making a model where there is no resemblance.
I say this because
(1)we are taking two orthogonal tubes of water of equal density!
(2)we are neglecting the non uniform solid core solid core of the earth.
 

1. What is the justification for using Newton's model in modern science?

The justification for using Newton's model in modern science lies in its ability to accurately describe and predict the behavior of objects in motion. It has been extensively tested and has consistently been found to be accurate, making it a reliable tool for scientists.

2. How does Newton's model explain the laws of motion?

Newton's model explains the laws of motion through his three laws: 1) an object at rest will remain at rest and an object in motion will remain in motion unless acted upon by an external force, 2) the force applied to an object is equal to its mass multiplied by its acceleration, and 3) every action has an equal and opposite reaction.

3. Can Newton's model be applied to all objects in the universe?

No, Newton's model is limited to objects with constant mass and in non-relativistic speeds. It does not hold true for objects moving at incredibly high speeds or for objects with changing mass, such as particles at the subatomic level.

4. How has Newton's model been improved or expanded upon since its development?

Newton's model has been improved and expanded upon through the development of other theories, such as Einstein's theory of relativity and quantum mechanics. These theories have helped to refine and expand our understanding of the laws of motion and have been able to explain phenomena that Newton's model could not.

5. Is Newton's model still relevant in modern science?

Yes, Newton's model is still relevant in modern science as it provides a solid foundation for understanding the physical world and is still used in many practical applications, such as engineering and space travel. It may not be the most advanced or all-encompassing theory, but it still has significant value in our understanding of the universe.

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