What do we know has to be TRUE about the action and reaction force below?

Ineed with these last two questions: 1) what are two types of cold air masses that influence the weather in north america? name them and describe their humidity. 2) describe the motion of a cold air mass and a warm air mass and the weather you would expect at a warm front and an occluded front.

The metric unit of electrical power is the watt volt ampere ohm

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle