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4
questions
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I want to know about the synodic and sidereal months. Why is there a difference between the two? [closed]
I want to know about the synodic and sidereal months. Why is there a difference between the two?
-1
votes
3
answers
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Confusion about angular momentum of earth-moon system
My assumed definition of angular momentum is the sum over $i$ of $L_i =r_i\times{\omega_i}\times{r_i}$ for each particle about some origin.
We have two spheres rotating about the centre of orbit. For ...
1
vote
1
answer
670
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Does Earth rotate around its geometrical axis OR the center of mass of Earth-Moon system?
I just came to know about barycentre. What exactly is this?
12
votes
4
answers
3k
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If we were on the Moon would Earth appear to be in motion or at rest?
If we were on the moon would earth appear stationary or would it appear to move. I think it must be stationary because moon is in sychronous rotation with earth.