Problem A2:
An object that has a density ρ is weighed in air. Its weight in air is
n_{1} Newtons. The object is placed in a fluid that has a density
of ρ_{0}. In the fluid the weight of the object is n_{2}
Newtons. The density of the object is ρ = n_{3} ρ_{0},
what is n_{3}? Note that n_{3} is unitless.

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