Why can’t we reach “absolute zero”?

Absolute Zero is impossible to reach. The reason has to do with the amount of work necessary to remove heat from a substance,which increases substantially the colder you try to go. To reach zero kelvins, you would require an infinite amount of work.

Hope this helps and Brainliest? :)

The density of water is 1 g/cm cubed and in order for the pebble to sink its density has to be greater than the density of water and in order for the twig to float its density has to be less than the density of water

They make up examples of physical properties