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Acting
at a Distance
Learn
about... That Gravity is like a little guy pull on us.
Introduction
To explain how, many forces act at a distance without contact
(i.e.gravitational and magnetic.) I will use a roller coaster
as an example.Suppose a roller coaster is at the top of a
lifthill, and gravity is not this little guy pulling the roller
coaster.
Hand
Gravity is an unseen hand that is magnetically pulling the
roller coaster always five feet in front of it. Like a horse
with a stick tied to its head, dangleing a carrot. It also
keeps earth in orbit, via the sun. The
magnetic force also acts at a distance.
Magnetic
If on a flume ride disney used magnets three feet undet the
water all spaced five feet apart, than the flume ride would
be drawn to the magnets because of its stainless steel under
belly. Than they would smoothly go from magnet to magnet.
This is an example of how magnets would act at a distance.
Magnets
Can't
The magnets can also not act at a distance. For instance,
if the flume ride's magnets are to powerful or placed closer
to the surface, or spaced to far apart than the flume might
get stuck to that one certain magnet.
This is
how two normal forces act at a distance gravity and magnetic,
and how one of the two doesn't.
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