mavity energy?

salami1212 · 13 Jan 2011 at 23:08

yes yes its me with another stupid post.

I was thinking, if you had a spring attached to the ground, which would compress very tightly, and you had a ball of a certain weight on the spring, if you released the spring and the ball shot up in the air, if it was the correct weight and the spring was the correct tightness could it fall back on the spring and bounce back up to a height where it would constantly bounce from the spring? Ive explained it terribly.

salami1212 · 13 Jan 2011 at 23:11

daz said:
Sounds like a great troll physics diagram

huh?

lmao!

salami1212 · 13 Jan 2011 at 23:12

Longbow said:
No, energy would be drained mainly from friction and the "device" would stop.

how about if it was super lubed up?

salami1212 · 13 Jan 2011 at 23:28

damnit.. Ok, another one for you all.

If you had a block of ice at -50 degrees celcius and you popped it in a bucket which was the same amount of water as the ice but it was at 50 degrees celcius would the water freeze or melt?

salami1212 · 13 Jan 2011 at 23:33

GeX said:
what's ambient in this 'situation'?

temperature wise?
and 0 heat can escape because its in a special bucket.

salami1212 · 13 Jan 2011 at 23:43

Amp34 said:
If it was a completely closed system (ie no heat or energy lost/gained) then if everything was perfect the water temperature would probably hit 0. Whether 0 (as opposed to -0.01) is when water freezes is another question.

In reality it would depend on how cold the room was outside. If it was warmer than 0 then it would all melt, if colder then it would all freeze.

As for how it would work I assume the edges of the ice cube would melt, cooling the water surrounding the cube down until it stated to freeze again, slowly rippling out as it goes along, then either freezing or melting entirely depending on my first paragraph.

so theres no definitive answer really. If there was zero way the temperature could be affected and the water was Exactly the same then it would either freeze or melt depending on which side of 0 water freezes on?