You leave your hot cup of coffee on the table and run to take a shower one morning. When you come out of the shower and take a sip, you notice your coffee is cold. Using the laws of thermodynamics and heat loss, explain why your coffee cooled off.

The term used when one objects heat transfers to another would be known as: Convection.

Explanation:

Convection: "the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat."

The article I skimmed over explains, "The outside surface of the cup is obviously hot or warm to the touch. Heat is not carried away fast enough from the cup to make the temperature of the outside surface of the cup equal to room temperature. Clearly, the cooling of the hot water in the cup involves conduction of heat through the cup followed by convection of the hot air associated with the outside surface of the cup away from the surface of the cup."

In short, when a warm or cold liquid in a glass is set onto a table (the table is room temperature), then the temperature of that liquid will transfer into the table, causing the liquid to be room temperature after a certain time.

I hope this makes sense to you! Have a great rest of your night!

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

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