An electrician is wiring new electrical outlets in a house and has stored a 49.5-m length of copper wire outside where the temperature is −10.3°C.

When the wire is brought inside and warmed to 21.0°C, by what amount in centimeters will the wire's length increase due to the temperature change?

the answer for apex is the lowest

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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