---
title: "Two identical spheres are held under water. Sphere A is made of aluminum (density \\( 2700 \\) \\( \\text{kg/m}^3 \\)) and Sphere B is made of lead (density \\( 11300 \\) \\( \\text{kg/m}^3 \\)). When both are released and remain fully submerged, how do the buoyant forces \\( F_{BA} \\) and \\( F_{BB} \\) compare?"
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url: "https://nerd-notes.com/ubq/107040/"
date_modified: "2026-08-18T02:38:35+00:00"
---

# Two identical spheres are held under water. Sphere A is made of aluminum (density \( 2700 \) \( \text{kg/m}^3 \)) and Sphere B is made of lead (density \( 11300 \) \( \text{kg/m}^3 \)). When both are released and remain fully submerged, how do the buoyant forces \( F_{BA} \) and \( F_{BB} \) compare?

Two identical spheres are held under water. Sphere A is made of aluminum (density \( 2700 \) \( \text{kg/m}^3 \)) and Sphere B is made of lead (density \( 11300 \) \( \text{kg/m}^3 \)). When both are released and remain fully submerged, how do the buoyant forces \( F_{BA} \) and \( F_{BB} \) compare?

- **A.** \[ F_{BA} > F_{BB} \]
- **B.** \[ F_{BB} > F_{BA} \]
- **C.** It depends on the depth at which they are released.
- **D.** \[ F_{BA} = F_{BB} \]

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/107040/*