You push on a door and it opens. explain what happens in terms of action-reaction forces.

The action – reaction pair of forces act on the same object with the instance of force applied. When we push the door, we apply action, and in response to which the door opens.

Explanation:

The third law of motion given by Newton was that “to every action, there is an equal and opposite reaction”. This explains the most phenomenal action undertaken on Earth.

For example, in the case given, when we pushes the door, the door is the object on which an action has been caused with force of push. In response the door, if would have been locked or stationary in action, would apply equal and opposite reactions on the person.

answer: 0.20

explanation: this can only be the answew because all the other measuremnets are not close

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.