Two balls are at the same height and released at the same time. one ball is dropped and hits the ground 5 s later. the other initially moves horizontally. when does the second ball hit the ground?

The dot diagram represents the motion of the motorcycle as it moves from left to right

How to tell if a molecule is polar or nonpolar with electronegativity

How to tell if two objects are in thermal equilibrium 1.the objects have the same temperature 2.the objects are the same size 3.the objects are touching each other 4.the objects temperatures are changing