Physics

Problem

A hollow plastic sphere has a mass of

0.30\,\text{kg}

and encloses

5.0\times10^{-4}\,\text{m}^3

of air. Approximately how much additional mass must be placed inside the sphere so that it is just neutrally buoyant in freshwater? a)

0.80\,\text{kg}

0.15\,\text{kg}

0.20\,\text{kg}

0.50\,\text{kg}