Question

Two objects have been touching for hours.What can you conclude about their temperatures?Explain

Answer 1

The end result is thermal equilibrium.

Explanation:

When two objects are touching for a specific period of time heat [thermal energy] always moves from a warmer substance to a cooler substance.

In your case we have two objects of unknown temperature. The temperature between those objects is transferred/ conducted.
The warmer body loses heat and the colder body gains heat.

Thermal energy that is transferred is called sensible heat transfer `q`
`q=m*c_p*(T_f-T_i)`

After hours of heat conduction between two objects of unknown temperature thermal equilibrium is achieved.