Difficult gravitational fields question

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    I can't seem to get the answer and idk why??


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    Update: I have managed to get the correct answers now (I think?). I used the wrong formula for mass, density and volume
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    (Original post by jessyjellytot14)
    Update: I have managed to get the correct answers now (I think?). I used the wrong formula for mass, density and volume
    I concur. You should have: \rho=\frac{m}{v} or a suitable rearrangement of this.
 
 
 
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