the proper mean lifetime of mu mesons is 2. a burst of mu mesons produced at some height in the atmosphere travel downwards at v=0.99c. if 1% of those in the original burst survive to reach the earth, estimate the initial height
the proper mean lifetime of mu mesons is 2. a burst of mu mesons produced at some height in the atmosphere travel downwards at v=0.99c. if 1% of those in the original burst survive to reach the earth, estimate the initial height