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A cup of coffee loses heat by:
- conduction - heat from the coffee enters the table top
- conduction- the hot coffee warms any milk or sugar added lowering the overall temperature
- convection - warm air (heated by the coffee) rises up by convention carrying the heat away.
- convection in the fluid in the cup brings the hottest fluid to the top allowing speedier evaporation.
- radiation - all bodies warmer than their surroundings radiate heat
- evaporation - the steam over the hot coffee is water vapor using the coffees heat to evaporate and escape the fluid
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