Determine the number of electrons in a system of cyclic conjugation (zero if no cyclic conjugation). pentagon positive charge

What occurs during a combustion reaction

Acaterpillar tries to climb straight up a wall a meter high, but for every 2 cm up it climbs, it slides down 1 cm. eventually, it reaches the top. when it reaches the top, it does not pull itself over so it will slide down 1 cm. what is the total displacement traveled?

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?