1.A particle called a muon, created in the upper atmosphere and moving 0.99c rel

Question

1.A particle called a muon, created in the upper atmosphere and moving 0.99c relative to the Earth would ordinarily only live 2.2 x 10 ¯â¶ s an average before decaying into other particles. This lifetime would allow it to travel only 660 m, no were near far enough to reach the earth’s surface, but many muon’s do reach the Earth’s surface, how can this be explained?

2.An atomic clock in Boulder, Colorado and an atomic clock in Washington DC are often not in synchrony, why is this so?

4.With regards to reference frames, how does general relativity differ from special relativity?

Explanation / Answer

3) we can see the stars which are behind the sun because the light rays(photons) are attracted towards sun. so they band at the surface of the sun.

4) special theory of relativity explains the things when one frame moves with respect to another frame with constant velocity and that velocity is comparable with light velocity.

but general theory of relativity explans the things when the frames are accelerated.

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