A cube of wood is floating on water. A cube of iron is totally submerged in water. The cubes are equal in volume. Which cube has the greater buoyant force acting on it? a. The buoyant force cannot be determined without additional information. b. The cube of iron has the greater buoyant force acting on it. c. The cube of wood has the greater buoyant force acting on it. d. Both cubes have the same buoyant force acting on it.