A piece of wood (4cm × 8cm × 5cm) is kept in water. What fraction of it remains inside the water? (Given, density of wood = 800kg/m^3 and density of water = 1000 kg/m^3)​

The boat's velocity relative to the riverbank can be resolved into two components. the component going north is 2.7 m/s and the component going west is 1.2 m/s.we add these two vectors and then find the magnitude of the resultant to get the speed.the magnitude of the resultant vector from adding can be obtained by the pythagorean theorem.    to two significant figures, the boat's speed relative to the riverbank is 3.0 m/s.

Ithink c because you have to work to become goid