What did the accident at the nuclear power plant in chernobyl in 1986 demonstrate about the use of nuclear power that had not been previously demonstrated? the byproducts of the process are radioactive. the generation of electricity releases no carbon dioxide. the uranium fuel

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.