You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 1.
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An equation can be dimensionally correct but that does not mean that it is physically correct. Explanation is given in the photo.
Density is calculated by dividing the mass by the volume.
D=
Substitute the corresponding values into the equation.
D=
D=5.55555556 g/cm³
We can round this value up to about 5.6, so the density of the material would be about 5.6 g/cm³.