Two charges + 2.6 uc and -5.4uc experience an attractive force of 6.5mN. What is the separation between the charges?

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

Oxygen and hydrogen gas are at the same temperature t. what is the ratio of kinetic energies of oxygen molecule and hydrogen molecule if oxygen is 16 times heavier than hydrogen.

A10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg piece of lead, which is much denser than aluminum. which one has the greater buoyant force on it? explain. b - the aluminum a) both have the same buoyant force. b) the aluminum c) the lead d) it cannot be determined without knowing their volumes.