question_answer

Energy density and pressure have the same dimensions. Comment.

Answer:

                  True, because energy density \[=\frac{energy}{volume}=\frac{M{{L}^{2}}{{T}^{-2}}}{{{L}^{3}}}=[{{M}^{1}}{{L}^{-1}}{{T}^{-2}}]\]                 and  \[\Pr essure\,=\frac{force}{area}=\frac{M{{L}^{2}}{{T}^{-2}}}{{{L}^{3}}}=\left[ {{M}^{1}}{{L}^{-1}}{{T}^{-2}} \right]\]