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Fields in Space Videos 15 videos
Don't let this question about gravitational forces get you down! Yeah, yeah...that was an easy joke. You get what you pay for.
AP Physics 1: 2.1 Fields in Space. What are the units for the universal gravitational constant G?
We've heard of some crazy dieting fads, but leaving the planet may take the cake. We don't suggest you do that, but we do suggest you answer t...
AP Physics 1: 1.2 Fields in Space 212 Views
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Description:
Don't let this question about gravitational forces get you down! Yeah, yeah...that was an easy joke. You get what you pay for.
Transcript
- 00:00
Thank you We sneak and here's your shmoop du jour
- 00:05
brought to you by gravity Sure it hurts when we
- 00:07
drop our physics book on her foot But at least
- 00:09
we're not floating off into the cold depths of space
- 00:13
That would happen All right given a very large sphere
Full Transcript
- 00:16
in which direction is the gravitational force directed and hear
- 00:20
the potential answer outward and we're perpendicular All right Well
- 00:25
there's One very large sphere that we should all be
- 00:28
pretty familiar with the earth That big ball All right
- 00:32
Now since we're on planet earth right now let's go
- 00:34
ahead and drop something Nothing expensive by the way Just
- 00:37
pencil Or maybe something soft Now did that pencil go
- 00:40
floating up toward the ceiling Did it start moving sideways
- 00:43
Well so we're probably not actually on planet earth And
- 00:45
in fact we may have been abducted by aliens Well
- 00:48
this has taken a turn and watch for the probing
- 00:51
All right But if we are on earth the things
- 00:53
we drop go downwards towards the core of the planet
- 00:56
So the correct answer is b all the other options
- 00:59
violate the laws of gravity and that's Not gonna happen
- 01:02
The gravity police keep things on lock down The next
- 01:04
time we're playing frisbee with a friend Let's remember to
- 01:06
thank gravity because the game would get really expensive if
- 01:09
the frisbees and never came down You know like a
- 01:12
flying saucer you know e
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