CAPE Physics Unit 1 · 2009 · Paper 1 · Question Q40

What is the pressure of a gas of density 0.09\text{ kg m}^{-3} and root-mean-square velocity of 1\,900\text{ m s}^{-1}?

1. (A)1.31\text{ Pa}
2. (B)57.0\text{ Pa}
3. (C)1.08 \times 10^5\text{ Pa}
4. (D)1.2 \times 10^6\text{ Pa}