What do you think caused NO2 and CO2 levels to decrease between winter 2019 and winter 2020? (Particularly in high population areas such as China and the United States?) *

Attach the free body diagram and i will you answer the question.! : d

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.