Give some advantages of Gravity.

Explanation:

Gravity keeps our muscles and bones up and working Gravity allows earth to retain its atmosphere Gravity being able to store its energy as 'potential energy ' allows us to harness it e.g water dams

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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.