Thermodynamics is the study of how particles react and how energy works in a system. There are four facts that hold true in every thermodynamics situation:

If two systems are in thermal equilibrium with a third system, then they are in thermal equilibrium with each other.

- Heat and work are forms of energy transfer.

Entropy in a system not in thermal equilibrium increases.

- Entropy in a system approaches a constant as temperature approaches zero.

These ideas are most likely called

O a thermodynamics experiment.

O a thermodynamics hypothesis.

a theory of thermodynamics.

a law of thermodynamics,

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the correct answer is modern american cars are not available due to trade restrictions.

trade between cuba and the united states have serious restrictions. the u.s. imposed an economic embargo on cuba, that among other things means that modern american cars are not available due to trade restrictions.

in response to some governmental actions of the authorities from cuba, president john f. kennedy proclaimed an embargo on trade between both countries in february 1962. the trade embargo remains active until this day and was implemented directly by the departments of commerce and the department of treasury.

in president trump’s administration, there is a national security presidential memorandum that "strengthens the policy of the u. s.", affecting trade with cuba.

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