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Usually it is rough so anything in there or by the inside can be broken up, I think.

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13y ago
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Anonymous

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4y ago

Cooling fins at the back of the refrigerator are usually black as, black is a good reflector and absorbs heat very fast. Black cooling fins are used as it is important to reflect the heat in the surroundings to keep the refrigerator cool so that is why most of the time black color is used.

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Q: Why are the cooling fins at the back of the refrigerator usually painted black and have a rough surface?
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Continue Learning about Physics

Do airplanes reflect light?

In the sense that any shiny surface reflects light, yes. Of course, all airplanes have varying numbers of shiny surfaces, depending on whether they are painted, what color they are painted, whether the aluminum is polished, etc. Also, the position of the Sun and the angle of the surface relative to the source of light (usually the Sun) affects the degree and amount of light reflected. But all in all, the answer is yes.


What form of energy does a refrigerator produce?

In a refrigerator, electrical energy is converted into mechanical energy by a motor. The motor drives a compressor, and this compresses and heats the refrigerant. Mechanical energy is converted into thermal energy in this process. The hot refrigerant is cooled in the cooling coils behind or beneath the appliance, and the cooler gas is "sprayed" through an expansion valve connected to the cooling coils inside the unit. The releasing of the pressure of the refrigerant allows expansion, and with expansion comes cooling.


Why would the two poles of a magnet attract to your fridge?

The refrigerator is usually not permanently magnetic; the magnet will induce magnetism temporarily in the refrigerator when it is brought close to it.


Does a refrigerator change heat into cold remove thermal energy from inside the refrigerator or cause thermal energy to disappear?

Thermal energy never disappears, but it can be moved from one place to another, which is what a refrigerator does. If you examine your refrigerator you will be able to observe that there are heat exchange tubes (usually on the back) which get hot as they pump heat from the interior to the exterior of the refrigerator.


Which setting is colder on a refrigerator 1 or 5?

On a refrigerator "5" is usually a colder temperature setting than "1". On heaters the opposite is true: 1 is usually the lowest temperature setting, and numbers greater than 1 are for higher temperatures.

Related questions

What is a very thin transparent film of color painted over an already-painted surface is called?

That is usually called a glaze.


How are crystals formed and how does the rate effect the crystal?

Crystals that are formed below the surface are formed by the cooling of magma. Crystals above the surface are formed when a volcano erupts, and cools, again, above the surface. Crystals that are below the surface usually have a slower rate of cooling than those above the surface, causing bigger crystals because of the slower cooling:)


What process is used to completely strip a painted wood surface?

The process of stripping a painted wood surface is called paint stripping. Usually, it involves chemically removing the paint, sanding the wood, and then repainting the wood.


How is pottery colored?

this is done by painting the surface of the pottery when dry The natural color of the clay that is used can affect the final color of pottery. It is usually painted to.


What is the purpose of a display on a refrigerator?

The purpose of a display on a refrigerator is usually to indicate the temperature at which the device is running. This is usually shown in Centigrade.


Can a fridge left open in a cool room use to cool room?

No. The heat that is generated by cooling the inside is usually given off at the back of the refrigerator. If you leave the door open then everything will become room temperature.


How do you find the size of a refrigerator?

There is usually a label on the door or possibly by the control that says how big it is.


What is usually painted red?

Firetrucks


Which is cheaper to use an air conditioner or refrigerator?

Usually the refrigerator, is the smaller appliance in the house.


How do you ship a refrigerator?

People usually ship a refrigerator through a car, ship, or plane.


What is a refrigerator cookie?

With refrigerator cookies the dough is formed into a roll and chilled in the refrigerator usually overnight. The dough is then sliced into rounds and baked.


Does cooling rate affect solubility?

slower rates of cooling will create larger crystals, rapid cooling allows little time for element accumulation in the crystal, therefore, the crystals created will be smaller. larger, visible crystals in igneous rock indicate that the magma was slow cooling, usually at depth. much smaller crystals in igneous rock indicate rapid cooling of lava, usually at or near the surface. crystals in igneous rock will grow larger and have more to accumulate material for their growth the more they have at their crystallization temperature.