12pts

how can you tell if two objects are in thermal equilibrium?

the objects are the same size.

the objects' temperatures are changing.

the objects have the same temperature.

the objects are touching each other.

Option (c) is the correct answer.

Explanation:

When two substances does not exchange any energy with each other then they are said to be in thermal equilibrium with each other.

This means the temperature of both the substances will be equal, that is why, there is no exchange of energy between them.

Thus, we can conclude that when the objects have the same temperature then you can tell the two objects are in thermal equilibrium.

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.