Recent content by superlux1234

We have not used this equation you speak of in class ... nor have we talked about it. I think this was meant to be treated as more of a conceptual question... but heck, maybe it would be good practice for me to plug some numbers in, to see what will actually happen. I am just working on some...

but the Earth is still pulling on the moon at all times, so it brings the moon back towards the Earth as the moon slows down... thus having a smaller angular momentum... as the moon approaches the earth, it will gain speed again (increase in ang momentum) ... and then protrudes into the...

Haha, okay, so you are saying that the CM is instantly different (as the Earth instantly becomes 2M), but then it stays constant from this point on, ie, it is stationary in its new position. The center of mass is indeed moved closer to the earth. So the moon is going to be pulled in, and as it...

Yes... well this is the first 2nd year course ... I still have a lot of learning to do. But I am going to spend a few solid days working on this stuff. Okay, so the center of mass of the system is now closer to the earth... So it has moved, but the moon is going to be pulled closer, so the...

2nd year univ physics. Okay, this line "A circular orbit at the Moon's orbital radius would have a larger velocity than the Moon's velocity." ... are you saying that the velocity at the original orbit (before mass of Earth doubles) is higher then the NEW orbit calls for, and thus cannot hold...

Hmm... but wouldn't the sudden change create an elipse? It wouldn't just magically pull it in closer, and continue on its circular orbit, would it? The algular speed is going to be too fast for this to be possible?

What would happen to the orbit of the moon if the Earth's mass were suddenly (magically!) to double? **Assume the orbit is initially circular This is everything given in the question. So, basically what I have come up with is using F=GMM/d^2 ... I have found that when the Earth's mass...

What would happen to the orbit of the moon if the Earth's mass were suddenly (magically!) to double? **Assume the orbit is initially circular This is everything given in the question. So, basically what I have come up with is using F=GMM/d^2 ... I have found that when the Earth's mass...