Answer:
Not possible (the buckets are not in close contact )
Step-by-step explanation:
Firstly what is thermal equilibrium?
Thermal equilibrium is "the condition under which two substances in physical contact with each other exchange no heat energy. Two substances in thermal equilibrium are said to be at the same temperature."
by virtue of the distance, and the condition under which thermal equilibrium must be satisfied, which is that two bodies must be in close contact, hence the buckets of water can not be in thermal equilibrium, since they are not in close contact.