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Natural Science Forum / Physics / Relativity / August 2005a special relativity theory problem
muons are elementary particles with a (proper) lifetime of 2.2 ?s. they are produced with very high speeds in the upper atmosphere when cosmic rays (high-energy particles from space) collide with air molecules. take the height L0 of the atmosphere (its rest length) to be 100 km in the reference frame of the Earth, and find the minimum speed that will enable the muons to survive the journey to the surface of the Earth. solve this problem in two ways: (a) in the Earth's frame of reference and (b) in the muon's frame of reference. > muons are elementary particles with a (proper) lifetime of 2.2 ?s. they are > produced with very high speeds in the upper atmosphere when cosmic rays [quoted text clipped - 5 lines] > problem in two ways: (a) in the Earth's frame of reference and (b) in the > muon's frame of reference. The weekend after Thanksgiving should be a busy time in your rose garden. First, canes should be pruned back to three or four feet simply to keep the extra length from whipping around in the wind and thus loosening the soil around the bud union, exposing it to cold, drying winter winds. It is the cold blustery conditions that does the most damage to our roses Dirk Vdm >> muons are elementary particles with a (proper) lifetime of 2.2 ?s. they >> are [quoted text clipped - 17 lines] > > Dirk Vdm Good one Dirk. Although not his usual M.O. I get the feeling this guy is simply another incarnation of the dyslexic troll. He decided to change when his old approach was not getting bites. What do you think? Thanks Bill > >> muons are elementary particles with a (proper) lifetime of 2.2 ?s. they > >> are [quoted text clipped - 23 lines] > incarnation of the dyslexic troll. He decided to change when his old > approach was not getting bites. What do you think? Of course he is the same troll. And I'm sure he is less of an idiot than he wants us to believe :-) Dirk Vdm >> >> muons are elementary particles with a (proper) lifetime of 2.2 ?s. >> >> they [quoted text clipped - 31 lines] > Of course he is the same troll. > And I'm sure he is less of an idiot than he wants us to believe :-) I already knew that. Occasionally he lapsed into coherence when discussing issues in computer science. He is obviously some cowardly childish computer nerd who gets his jollies by annoying others. I suspect he is Glenn Poultney AKA Kadaicha Man. Of course that is just a guess - these idiots are far too cowardly to ever intentionally reveal who they are. Thanks Bill > Dirk Vdm > muons are elementary particles with a (proper) lifetime of 2.2 > microseconds. they are produced with very high speeds in the upper [quoted text clipped - 6 lines] > problem in two ways: (a) in the Earth's frame of reference and (b) in the > muon's frame of reference. > muons are elementary particles with a (proper) lifetime of 2.2 ?s. they are > produced with very high speeds in the upper atmosphere when cosmic rays [quoted text clipped - 5 lines] > problem in two ways: (a) in the Earth's frame of reference and (b) in the > muon's frame of reference. Muon clocks are difficult to wind up and impossible to to read without eyeglasses. Try one of these instead. http://www.leapsecond.com/hpclocks/ Sue... |
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