For a submarine, identify when it will have the greatest buoyant force acting on

Question

For a submarine, identify when it will have thegreatest buoyant force acting on it. Assume thatneither the volume of the submarine nor the density of the waterchange. Choose all that apply.
Whenit is empty and floating on the surface.
When it is in dry dock and no part of itis submerged in water.
When it is full of cargo, fullysubmerged, and resting on the bottom at a depth of 96 m.
When it is empty and fully submerged ata depth of 48 m.
When it is full of cargo and fullysubmerged at a depth of 48m. Whenit is empty, fully submerged, and resting on the bottom at a depthof 96 m.
When it is full of cargo and floating onthe surface. Whenit is empty and floating on the surface.
When it is in dry dock and no part of itis submerged in water.
When it is full of cargo, fullysubmerged, and resting on the bottom at a depth of 96 m.
When it is empty and fully submerged ata depth of 48 m.
When it is full of cargo and fullysubmerged at a depth of 48m. Whenit is empty, fully submerged, and resting on the bottom at a depthof 96 m.
When it is full of cargo and floating onthe surface.

Explanation / Answer

From this definition, you can see that the buoyant force isindependent of the mass, but dependent on how much of the submarineis submerged below water. Therefore, answers 3, 4, 5, and 6 arecorrect.

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