Sea water has a density of $1030\,\text{kg m}^{-3}$. The Earth's gravitational field strength is $9.8\,\text{N kg}^{-1}$. Atmospheric pressure is $101\,000\,\text{Pa}$. At what depth in sea water does the total pressure from the atmosphere and the water reach $513\,000\,\text{Pa}$?
- A$40.8\,\text{m}$
- B$50.8\,\text{m}$
- C$400\,\text{m}$
- D$498\,\text{m}$