sentences: an electric motor is a part of an electric fan for rotating the vanes in the fan & rotation is a kind of motion -> the steam dominance in the hater materials the windows in the hater to stay the electric motor in the fan causes the vanes in the fan to move  the electric motor in the fan causes the vanes in the fan to move & an nation of mechanical matter is an preposition in rest -> the electric motor in the fan causes the vanes to have mechanical energy the electric motor in the fan causes the vanes to have mechanical energy  the electric motor in the fan causes the vanes to have mechanical energy & an steam settle incidence electrical matter into mechanical matter -> a fan converts electrical energy into mechanical energy