Satellite Collision: What Are Your Thoughts?

AI Thread Summary
The discussion centers around a recent satellite collision and its implications for debris falling to Earth, given the collision occurred at a height of 400 miles. Participants express concern about the potential dangers posed by the debris. One user experienced technical issues when accessing related links, initially mistaking them for a joke. The conversation highlights the importance of discussing satellite collisions within the context of physics and safety. Overall, the topic is deemed relevant and worthy of further exploration in the forum.
Physics news on Phys.org
I received this notification via Email:

> pallidin has just replied to a thread you have subscribed to entitled - Satellite collision - in > the Classical Physics forum of Physics Forums.
>
> This thread is located at:
> https://www.physicsforums.com/showthread.php?t=291930&goto=newpost
>
> Here is the message that has just been posted:
> ***************
> What the heck was that? :mad::mad:
> ***************

I assume someone kindly deleted this thoughtless response.

The link refers to a sensible thread among mathematicians
about the recent collision between satellites.
The point I was making was that most of the debris would collide with the earth,
since the collision was only 400 miles above the Earth's surface.

David
 
Dave, when I first opened your link, blank windows started popping-up so fast that I had to shut-down my computer. So, I thought the link was some type of joke.
Anyway, I discovered that the problem was on my end, so I deleted my post.

My apologizes.
 
Accepted.
Have you managed to read the link now?
I thought the subject was both topical and suited to this forum.

David
 
Hello everyone, Consider the problem in which a car is told to travel at 30 km/h for L kilometers and then at 60 km/h for another L kilometers. Next, you are asked to determine the average speed. My question is: although we know that the average speed in this case is the harmonic mean of the two speeds, is it also possible to state that the average speed over this 2L-kilometer stretch can be obtained as a weighted average of the two speeds? Best regards, DaTario
The rope is tied into the person (the load of 200 pounds) and the rope goes up from the person to a fixed pulley and back down to his hands. He hauls the rope to suspend himself in the air. What is the mechanical advantage of the system? The person will indeed only have to lift half of his body weight (roughly 100 pounds) because he now lessened the load by that same amount. This APPEARS to be a 2:1 because he can hold himself with half the force, but my question is: is that mechanical...
Some physics textbook writer told me that Newton's first law applies only on bodies that feel no interactions at all. He said that if a body is on rest or moves in constant velocity, there is no external force acting on it. But I have heard another form of the law that says the net force acting on a body must be zero. This means there is interactions involved after all. So which one is correct?
Back
Top