Nicolaus copernicus was considered: a heretic because his theory disagreed with the church a hero because his theory agreed with current beliefs the "father of astronomy" because he believed the earth was the center of the solar system

The correct answer should be b let me know if i’m wrong

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.