a 2kg ball rolls down the hill. By the time it is at the bottom, the balls kinetic energy is 25 j. what is its velocity at the bottom of the hill?

How are series and parallel circuits simililar? both have multiple paths for electrons to travel. both require resistors in their circuits. both require a switch to complete the circuit. both have at least one path for electrons to travel.

It is really hard for me right know

Which statement describes the formation of our sun? a disk formed of long trails of stars coiled into a spiral. it formed an elliptical flattened disk. heat and gases contracted within a nebula. gravity pushed stars away from a center core.