Heat always flows from high temperature to low temperature and flows until the temperature between the two locations become equal. hence for the two objects having heat flowing between them, the temperature must be different. one object must have higher temperature than the other object.
hence the correct choice is
the objects must be different temperatures
If heat is flowing between two objects : ( A ) The objects must be of different temperatures
Conduction is the movement of heat energy from a region or body of higher temperature to a body or region due to the collision of molecules. conduction is readily seen in solids and liquids because of the closeness of the molecules. therefore if heat is flowing from a between objects one of the object must have a higher temperature ( i.e difference in temperatures ).
Hence we can conclude that If heat is flowing between two objects the objects must be of different temperatures.
Learn more about conduction : https://brainly.com/question/893656
