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Answered

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Melissa burned her hand on the stove why did running cold water over her hand make the burn less severe?

Cold transferred to her hand from the water by convection.

Cold transferred to her hand from the water by condition.

Heat transferred from her hand to the water by convection.

Heat transferred from her hand to the water by can't touch.
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A radiator is attached to and walk on one side of the room which is the most likely way its heat will warm the air on the other side of the room?

By conduction

By convection

The warm air will sink and condense

the warm air will rise and condense
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Which of the following is an example of heat transfer by radiation?

Wind currents

A lightbulb giving off heat

A barefoot on a hot sidewalk

A microwave oven heating food

Sagot :

AL2006
1). (Melissa's burn). None of the choices is correct.
Heat transferred from her hand to the water by conduction.

2). (Radiator on the walk).
Its heat will not warm the air on the other side of the room.
The radiator will warm the air around it, and THAT warm air will
eventually move to the other side of the room by convection.

3). (Heat transfer by radiation)
That's how heat spreads from a light-bulb.
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