If you look on openstudy.com they have lots of answers to this :-)
In china it as a lot of the worlds population
I agree on that. it's not like there is completely no force of gravity acting on them (I mean if they're still around the earth) , it's that it's so little that they can't even notice it. they'll float around and they seems like they have no weight. this is called weightlessness.
45 is 1/8 of a circle so then you take the 24 hours for a full one and divide by 8 24/8=3 3 Hours for a full rotation
Answer that helps
Explanation
and if it does not somebody will
