If a freely floating ship has a weight of 5X10^5N, what will be the weight of water displaced by ship?​

With i really need the correct answer!

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.

Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point