Answer
$4.5KeV$
Work Step by Step
The required kinetic energy can be determined as
$K.E=E_i-E_f$
We plug in the known values to obtain:
$K.E=38.0KeV-33.5KeV$
$K.E=4.5KeV$
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 30 - Quantum Physics - Problems and Conceptual Exercises - Page 1075: 49
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