Could someone
standard demand
q1. (a) the diagram shows a polythene rod being rubbed with a woollen cloth.
the polythene rod becomes negatively charged.
explain how this happens.

Fitness is the ability to perform only very light levels of physical activity.

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.