(a) Explain why the draught of a ship decreases when it passes from fresh water to seawater and vice versa. (6)

(b) A ship of 14000 tonne displacement, 130 m long, floats at a draught of 8 m. Calculate the wetted surface area of the ship using: (10)

(i) Denny's formula

(ii) Taylor's formula with c = 2.58