[单选题]
10.22: A small and uniform70vbhvpl zguso,902jijz : e 7 10.0 kg object floats at rest with udb oiy 6k79+x75% of the object submerged in a cubical tyo d9i+7u bkx6ank containing $50.0 m^{3}$ of water. What is the buoyant force acting on the object?