A barometer shows $780\,\text{mmHg}$. Mercury has a density of $1.36 \times 10^4\,\text{kg m}^{-3}$. Determine the atmospheric pressure in $\text{N m}^{-2}$?
- A$1.1 \times 10^4\,\text{N m}^{-2}$
- B$1.1 \times 10^5\,\text{N m}^{-2}$
- C$1.1 \times 10^7\,\text{N m}^{-2}$
- D$1.1 \times 10^8\,\text{N m}^{-2}$