Consider a solid object of uniform mass density whose outer surface is a revolved parabola, and whose top is a flat circular disk. The object is initially upright and at rest, with its vertex touching the surface of a body of water.

The object falls into the water, and has zero speed at the instant it becomes fully submerged. What is the ratio of the density of the object to the density of the water (to 3 decimal places)?

**Details and Assumptions:**

- There is an ambient downward gravitational field.
- Assume that the buoyant force is the only force exerted by the water on the object.

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