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1 October, 14:40

Hot coffee in a mug cools over time and the mug warms up. Which describes the energy in this system?

The average kinetic energy of the particles in the mug decreases.

The average kinetic energy of the particles in the coffee increases.

Thermal energy from the mug is transferred to the coffee.

Thermal energy from the coffee is transferred to the mug.

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  1. 1 October, 15:03
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    I believe the correct answer from the choices listed above is the last option. The energy in the system can be described by saying that the t hermal energy from the coffee is transferred to the mug. It is always that energy flows from high to low. Hope this answers the question. Have a nice day.
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