Hydrogen balloons are often used to decorate the atmosphere during festivals. If the volume of the hydrogen balloon is 10m3 and the buoyancy in the air is _ _ _ _ n, if the weight of the materials use

Hydrogen balloons are often used to decorate the atmosphere during festivals. If the volume of the hydrogen balloon is 10m3 and the buoyancy in the air is _ _ _ _ n, if the weight of the materials used to make the hydrogen balloon is not considered. (1) According to Archimedes principle: f float = ρ gas gvrow =1.29kg/m3×10n/kg×103 =129n;

(2) Loadable goods: G object =F floating -G ball =F floating-ρ hydrogen gV platoon =129N-0.09/m3×10n /×10m3 =120n;

When it is at rest in the air, it is acted by a balancing force, so the resultant force is zero.

So the answer is:129; 120; 0.