You conduct an experiment where you put ice cubes in a sheet of aluminum foil and another ice cube in a sweater. Which ice cube melts faster, and why? What does this have to do with the air trapped in the sweater's cavities?
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Loading...Hello everyone, Unfortunately, I've searched the internet for the temperature coefficient of copper at 50 degrees Celsius, but to no avail. The temperature coefficient at 20 degrees Celsius is always given as a reference. How much does it deviate at 50 degrees Celsius? Is the deviation so small that it can be neglected?
The answer is 2 and 5, since the ray is supposed to be refracted toward the normal. How do I know that? Shouldn't 4 also be correct?
Why does the square root of 2 appear in the formula?
Hello, I don't understand a task. Can someone explain to me how to solve it?
I've put water in the freezer and want to get it out as quickly as possible. How many hours (approximately) does this take?
Metals conduct heat well… so the warm air of the environment will let the ice cubes melt quickly.
The pull acts with the air in the tissue as a thermal insulation. The wool prevents the cooled air in the fabric from being replaced by new, warmer air.
The aluminium melts faster? My explanation would be: The film perfectly conducts the cold to an almost infinite environment with room temperature. In the sweater, air areas are formed which prevent a rapid discharge and still have a stabilizing effect.
Hihi, although the result is correct, the explanation works exactly in reverse!
‘colds’ is not conducted away from the ice cube, but heat to it! =;->
Oh yes, thank you