Ametal coin has certain properties that can be measured which property of a coin is different on the moon than it's on earth

After cloud droplets form, what must happen to them for precipitation to occur?

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.

What do electromagnetic waves carry? how are they produced through which media can they move? where do they transfer energy? what do they not transfer? what do mechanical waves carry? how are they produced? through which media can they move? where do they transfer energy? what do they not transfer?