HIi,
To solve this we'll start by calculating the
Mass of each metal sphere is given by:
m=4/3πr^3ρ
The force of attraction between two metal sphere is given by:
F=Gmm/(2r)^2 F=G(4/3πr^3ρ)(4/3πr^3ρ)/4r^2 F=G(4/3πρ)(4/3πρ)/4*(r^3)(r^3)r^2 F=Kr^4
Hope this helps.
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