a ship 450 m long moves in in sea water where density is 1030 kg/m.a 1:80 scaled ship model is tested in wind tunnel with velocity of 30 m/s and the resistance developed by the model is 40 n.determine the velocity of ship in sea water and also the resistance in sea water if density of air 1.3 kg/m and kinematic viscosity of sea water and air as 0.012 and 0.018 stokes respectively.