Final answer:
The volume of sea water displaced by the ship is approximately 1165048 cubic meters.
Step-by-step explanation:
To calculate the volume of sea water displaced by the ship, we can use the principle of buoyancy. The mass of the ship is 1200000 kg, which is also the mass of the water displaced. Since the relative density of sea water is 1.03, we can calculate the volume using the formula:
Volume = Mass / Density = 1200000 kg / 1.03 kg/m³ ≈ 1165048 m³
Therefore, the ship displaces approximately 1165048 cubic meters of sea water.