honstrate why this fact means that the density in this sphere decreases R2 where R is radi
honstrate why this fact means that the density in this sphere decreases R2 where R is radi
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Transcribed Image Text:5. Galaxy rotation curves are flat, indicating the presence of
unseen dark matter. Assuming the dark matter occupies a
sphere, demonstrate why this fact means that the density p of
dark matter in this sphere decreases « R where R is radius.
List a couple of possibilities that are consistent with dark
matter.
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