A480-kilogram horse runs across a field at a rate of 40 km/hr. what is the magnitude of the horse's momentum?
a) 12 km/hr
b) 19,200 km/hr
c) 19,200 kg x km/hr
d) 12 kg x km/hr
electricity is a term used to describe the energy produced when electrons are caused to directional flow from atom to atom. this movement of electrons between atoms is called electrical current.
the direction of the current in an alternating current circuit changes repeatedly at a constant rate. the often-ness with which it changes is known as its frequency .
it is when it loses electrons
the answer is 200000