---
title: "Suppose we wish to make a neutrally buoyant hollow sphere out of titanium. If the sphere has an outer radius of \\( 1.5 \\) \\( \\text{m} \\), what must be its inner radius?"
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url: "https://nerd-notes.com/ubq/86810/"
date_modified: "2025-04-29T23:23:18+00:00"
---

# Suppose we wish to make a neutrally buoyant hollow sphere out of titanium. If the sphere has an outer radius of \( 1.5 \) \( \text{m} \), what must be its inner radius?

Suppose we wish to make a neutrally buoyant hollow sphere out of titanium (\(\rho = 4500 \text{kg/m}^3\)). If the sphere has an outer radius of \( 1.5 \) \( \text{m} \), what must be its inner radius?

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