Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 34 - Reading Check Questions (Comprehension): 8

Answer

The safeguards to keep the nuclear reactions within check are neutron-absorbing control rods (boron or cadmium), and plenty of nonfissionable U-238 to dilute the U-235.

Work Step by Step

This is discussed on page 642.
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