Answer
$1.5\times 10^4s$
Work Step by Step
We know that
$\Delta t=\frac{d}{c}$
We plug in the known values to obtain:
$\Delta t=\frac{4.5\times 10^{12}}{3.00\times 10^8}=1.5\times 10^4s$
Physics Technology Update (4th Edition)
by Walker, James S.
Published by
Pearson
ISBN 10:
0-32190-308-0
ISBN 13:
978-0-32190-308-2
Chapter 25 - Electromagnetic Waves - Problems and Conceptual Exercises - Page 901: 18
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