Two bodies, with heat capacities c₁ and c₂ (assumed independent of temperature) and initial temperatures t₁ and t₂ respectively, are placed in thermal contact. show that their final temperature is given by t₁ = (c₁t₁ + c₂t₂)/(c₁ + c₂). if c₁ is much larger than c₂ . show that = t₁ + c₂(t₂ -t₁)/c₁.

Explanation:

Given:

The heat lost by one body will be equal to the heat gained by other body by first law of thermodynamics.

Let assume that   is greater than and be the final temperature of both body.

If is much larger than then final temperature   will be

iron would move it is magnetic there is a mag field around the current in the wire

there are no contact forces mentioned on the list of choices that you've provided.