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Calculate the tidal force experienced by Io. How does it compare to the tidal force experienced by the Moon due to the Earth? What would the Earth-Moon distance (i.e., distance between their centres) need to be in order for the Moon to experience similar...

Using the densities below, find what percentage of the Earth's mass is contained in its core. If Earth's core were adjusted in radius so that the core contained forty percent of the mass, by what factor would the radius of the Earth change compared with i...

Thank you very much!

Ok so I figured out that 29% of earth's mass is contained in its core. I just don't know how to proceed with the 2nd part of this question.

Me too :.)

Yall should add me too lmao

8) A: 36.8