Calculate the buoyancy force acting on a stone with a volume of 100 dm ³.

Initial data: V (volume of stone taken) = 100 dm3 (0.1 m3).
Reference values: g (acceleration due to gravity) = 9.81 m / s2; ρw (density of water in which the stone is immersed) = 1000 kg / m3.
The buoyancy force that acts on the taken stone is calculated by the formula: Fa = ρw * g * V.
Calculation: Fa = 1000 * 9.81 * 0.1 = 981 N.
Answer: A buoyant force of 981 N. acts on the taken stone.

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