Physics Help Forum Relativity - laboratory reference frame

 Special and General Relativity Special and General Relativity Physics Help Forum

 Jun 18th 2013, 04:05 AM #1 Junior Member   Join Date: Jun 2013 Posts: 1 Relativity - laboratory reference frame Hi everyone, I'm new in here and I need some help to figure out this problem. A cosmic ray travels at a velocity v = 0.999c. The estimated life span in it's own frame reference is T = 1,22 * 10^-6 s Using the laboratory reference frame, how can I calculate the the average life span of the cosmic rays that travel at the speed of v=0,999c? and the distance traveled? This is a simple problem but I can't figure it out quite well, can anyone give me some clues?
 Jun 18th 2013, 04:44 AM #2 Forum Admin     Join Date: Apr 2008 Location: On the dance floor, baby! Posts: 2,857 You might be interested in this article and the section "Lorentz transformation for frames in standard configuration." Once you get the time, how do you go about finding the distance traveled? -Dan __________________ Do not meddle in the affairs of dragons for you are crunchy and taste good with ketchup. See the forum rules here.

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