According to Coulomb’s law, the force between two charges acts along the straight line joining the charges. The force is directly proportional to the product of the charges, and inversely proportional to the square of the distances between the charges. This law is similar to
A) the kinetic theory of gases.
B) Newton’s third law of motion.
C) the first law of thermodynamics.
D) the universal law of gravitation.

26.4 is about the right time

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.