calculate the largest volume of aluminum that can be supported by a 10.0 L block of wood floating in gasoline. The density of aluminum is 2.70

Ibelieve the correct answer would be c.

Answer the above statement is ( false );

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.

Iwould think it would be efficiency.