Which of the following correctly shows the four most abundant gases in the earth's atmosphere in order from most abundant to least abundant? a. oxygen, nitrogen, argon, carbon dioxide b. nitrogen, oxygen, argon, carbon dioxide c. oxygen, nitrogen, carbon dioxide, argon d. nitrogen, oxygen, carbon dioxide, argon

An electric current in a wire will push or pull on a permanent magnet. which statement best explains how an electric current creates an electromagnetic force on another magnet?

Anybody wanna ? (picture included? )

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.