Are you inquiring about the speed of the propagation of gravity? As far as I know, this is still undertermined. You might find all sorts of answers, from infinite, to 10 times the speed of light, etc.; but I believe the most widely accepted theory at this point in time says that it travels at the speed of light. I will ask the moderators to move this post to the special/general relativity section, if it belongs there.luxiaolei said:Hi,all, problem:
2 stars, distance is 1 lightyear.
If I move one star, will the other star move 1 year later?
Basically, I want expose the problem that, how fast does a field travel.
Thanks In advance!
PhanthomJay said:Are you inquiring about the speed of the propagation of gravity? As far as I know, this is still undertermined. You might find all sorts of answers, from infinite, to 10 times the speed of light, etc.; but I believe the most widely accepted theory at this point in time says that it travels at the speed of light. I will ask the moderators to move this post to the special/general relativity section, if it belongs there.
The amount of time it takes for another object to move after one object has moved depends on several factors, such as the mass and velocity of the objects, as well as any external forces acting on them. It is not possible to give a specific time frame without knowing these details.
No, there is no set time for an object to move after another one. The time it takes for an object to move is affected by various factors and can vary greatly.
Yes, the distance between objects can affect the time it takes for one to move after another. The further apart the objects are, the longer it may take for the second object to begin moving.
Yes, it is possible for two objects to move at the same time. This can happen if both objects are experiencing the same external forces or if their movements are coordinated.
No, the movement of one object does not necessarily guarantee the movement of another. This depends on the specific circumstances and forces acting on the objects.