Answer to Question #220086 in Physics for Alex

Question

a) Two observers observe two events from different inertial frames of

reference in uniform relative motion at a speed of 0.90c. Under what condition

would the observers observe these events to be simultaneous? Write down

all possible conditions under which the events would not be simultaneous for the

two observers.

(b) The mean lifetime of a particle is 2.5 micro second when it is produced in the top layers of the Earth’s atmosphere. If it travels at the speed of 0.9999c, what is its life time

as measured by an observer on the Earth? Calculate the distances travelled by the particle in its own frame of reference and the Earth’s frame of reference.

Answer 1

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