How do you know that an action-at-a-distance force is involved in the motion of the ball?

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

What component of earth’s atmosphere exists entirely as a result of photosynthesis?

Ne way in which elements differ from each other is the structure of the electron cloud in each element's atoms. in an electron cloud, an electron that is farther away from the nucleus has