Qué velocidad –en m/s– tiene un móvil, que recorre 15 km en 20 minutos
(es para hoy por f)

It may possibly be c i think |-/

This did i unseated, sorry

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.

C. the electric current passes from the slip rings, through the brushes, and to the collection device.