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katrin [286]
3 years ago
9

a scientist heats a piece of iron until it is glowing white–hot. he places the metal inside a metal box. he removes all of the a

ir from the inside of the box. after a few seconds, the sides of the box that are not touching the metal begin to feel warm. which process is most likely responsible for the warming? convection convection current radiation evaporation
Physics
2 answers:
Delvig [45]3 years ago
8 0

Answer:

Radiation.

Explanation:

convection: The movement of heat through liquids.

convection current: The motion of moving the convection's mass.

radiation: The transfer of heat in wave like movements through electromagnetic waves.

evaporation: When a substance reaches its boiling point and turns to a gas.

So, since the heated iron is not touching any sides of the metal box, but the sides are still getting hot, the iron is radiating throughout the box.

torisob [31]3 years ago
4 0
Heat transfer through Radiation is responsible.

This is heat transfer that does not require a material medium or contact is not required.
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The current that would pass through the 30 ohms resistor is 2 A.

<h3>What is electric current?</h3>

Electric current is the rate of flow of electric charge round a conductor.

To calculate the electric current that would pass through the 30 ohms resistor, we use the formula below

Formula:

  • I = V/Rt........... Equation 1

Where:

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From the question,

Given:

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Hence, The current that would pass through the 30 ohms resistor is 2 A.

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