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yes it would, because of the moons atmosphere, even the craters have not faded away so the footsteps would not fade away. Best type of legacy one can leave


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Are tidal effects from the Sun and/or Moon taken into account in GPS systems? On calculating the orbits of the satellites, yes. The satellites orbit high enough that accurately modeling the orbits of the satellites mandates accounting for third body perturbations from the Moon, the Sun, and the planets. The orbits of the satellites are calculated from ...


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As Hritik said, it's generally better to ask one quesiton at a time, and it's also a good idea to do a little reseach yourself. Most of these questions are researchable, but they're also pretty straight forward, so I'll give it a shot. First what if anything could cause the orbit of the Earth to start to diminish start to go towards the Sun closer on ...


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The Earth, actually, is moving away from the sun at a very slow rate. The tidal forces between the Earth-Sun pair slowly transfers the Sun's rotational energy to the Earth, and this causes the Earth to move further and further away. (albeit this happens almost unnoticeably slowly.) The Earth moon system is the most well known case when it comes to tidal ...


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Earth is in equilibrium in the space ( both rotational and translational) . The net ext force on earth is zero and hence torques too. Hence under any circumstance earth cannot deviate from its original path. It will continue to be moving as it was moving. There are many other theories which can lead to the decline of earth ( like black hole one) but nothing ...


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Yes, in the situation you describe the ball will collide with the outer wall of the box. This is an example of a tidal force. Suppose you are floating right in the centre of the box (specifically at its centre of mass), then you and the box will fall at the same speed so you'll appear to be hovering weightless at the centre of the box. Suppose you now ...


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This link explains it: The Earth experiences two high tides per day because of the difference in the Moon's gravitational field at the Earth's surface and at its center. You could say that there is a high tide on the side nearest the Moon because the Moon pulls the water away from the Earth, and a high tide on the opposite side because the Moon pulls the ...


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You mention a couple of times the curvature being an invariant. I wonder if you're confusing this with being dimensionless. I guess that you're talking about the Ricci scalar, which is a relativistic invariant, but it is not dimensionless; IIRC it has units of inverse distance squared. On distance scales much smaller than scale implied by the curvature, ...


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Lunar soil or lunar regolith, is mostly created by meteorite and micrometeorite impacts which directly pulverize the rock, or from the ejecta from the impact. Some amount (I can't seem to find any figures) is also created from high-energy particles in solar wind causing bits of rock to spall. In theory, the bootprints would last until the soil turns over ...


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This problem is dealt with (in the context of classical General Relativity) nicely in Taylor & Wheeler's book "Exploring black holes: An introduction to General Relativity" (2000, Addison, Wesley, Longman). In the section entitled "Project B: Inside the black hole" they perform a calculation for a free-falling observer, based on the Schwarzschild metric ...


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Answer to question Version 1: No one knows. We can answer this question using general relativity to give a classical description but I think there is now serious doubt that GTR describes the inside of a black hole (i.e. within the event horizon) accurately and that we shall need a full quantum theory of gravity to know what happens there. But the classical ...


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Taking this as a matter of Fermi estimation, I will take the Newtonian form of gravity. No, this isn't great accuracy, but if anyone has any severe theoretical issues to raise, I will be glad to hear them. I will assume that your body extends 1 m out from its center of mass and that the extremities there will experience 10 g before your fingernails bleed and ...



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