Q about moon and sun tides, energy related to comet strikes and the mass water?

AI Thread Summary
The discussion focuses on calculating the height at which the gravitational potential, influenced by the moon, equals the potential at Earth's radius without tides. The user seeks assistance primarily with this second question, emphasizing the need to understand the impact of the moon's gravitational field on Earth's potential. The conversation highlights the relationship between celestial bodies and their effects on Earth's water levels. Understanding these gravitational interactions is crucial for comprehending tidal phenomena. The inquiry underscores the complexity of gravitational potential in relation to celestial mechanics.
aw07
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Please see attatchment for qs. I really need help with number two mostly.
 

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rearth is the radius of Earth without tides. It has a potential, given by the gravitational field of earth. If you add the potential contribution from the moon, the potential will change. Try to determine the height h where the (new) potential is equivalent to the old potential at rearth.
 

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