Answer
$B=0.9988$
Work Step by Step
We know that
$B=\sqrt{1-\frac{1}{\gamma^2}}$
We plug in the known values to obtain:
$B=\sqrt{1-\frac{1}{(20.57)^2}}=0.9988$
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 37 - Relativity - Problems - Page 1148: 50b
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