Which of the following statements about the planets is not true? a. Mercury has a greater eccentricity than Venus
b. Uranus has the smallest mass of the outer planets
c. Neptune has the shortest rotation period of any planet
d. earth is the most dense planet

ANSWER: C!!!

The objects are acted upon by only one force. gravity. mass times the acceleration of gravity (-9.81meters/second squared).

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.