II. The weight of a body decreases as the square of its distance from the centre of the Earth increases. Therefore, if a body at the surface of the Earth (4000 miles above the centre) weighs 100 pounds, what would that same object weigh 1000 miles above the Earth's surface (5000 miles above the centre)?
Now one might think that since LEO is around 100 miles and high geosynch orbit is around 250, that something at a THOUSAND miles up would be very very very close indeed to weighing nothing at all. And one would have gotten this question wrong.
The answer, as the mathematics clearly show, is 64 pounds.
Maybe later on I'l post some other snippets.