GR9677 #36



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Comments 
CaspianXI 20090322 16:24:17  The two lumps' energies will be "converted" into mass when they collide and stop because we're given that no energy is radiated. Hence, the final mass must be greater than 8 kg. So, we can immediately eliminate options (A), (B), and (C).
So, if you can't figure it out, you can guess and have a 50% chance of getting it right.   lowder.chris 20071003 21:31:57  Relativity gives me a headache. :)
bbaker03 20071016 18:38:25 
sorry im looking at the solution and getting confused. are you using the equation =

grae313 20071031 12:44:17 
yes, bbaker03, if you plug in to the equation you wrote for gamma, you get

bbaker03 20071101 10:24:11 
Thanks a lot for your help this site is saving my life on this test. Can't thank you all enough.

 

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