1. Doppler shifts have been used to determine the rate of expansion of the universe. a) Given that a distant star is receding at a speed approximately 8% of the speed of light, determine the shif...
The average lifetime of mu-mesons with a speed of 0.95c is measured to be 6 times 10^-6 s. Compute the average lifetime of mu-mesons in a system in which they are at rest. Pions have a half-life of 1.8 times 10^-8 s. A pion beam leaves a particle accelerator at a speed of 0.8c. What is the expected distance over which half of the pions should decay classically? Relativistically? Rocket A travels to the right and rocket B travels to...