Final answer:
To have a top box balanced on a bottom box, the objects inside the top box must be distributed so that their combined center of gravity aligns with the center of the bottom box, according to the principles of equilibrium in physics.
Step-by-step explanation:
If you see a box that is balanced on another box, you can conclude about the distribution of objects in the top box based on the concept of equilibrium. In physics, equilibrium refers to a state where the sum of forces and the sum of torques (rotational forces) on an object are zero.
Therefore, for the top box to be balanced, its center of gravity must be directly above the center of the bottom box. This implies that the distribution of objects inside the top box must be such that their combined center of gravity aligns with the center of the bottom box.
This is akin to the way two children balance a seesaw by adjusting their positions relative to the pivot to maintain equilibrium. The same principle applies when considering how a heavier child can balance a lighter child by sitting closer to the pivot point, as their combined center of gravity needs to be above the pivot for equilibrium.