#### Answer

k=$\frac{2U}{x^2}$

#### Work Step by Step

U=$\frac{1}{2}$kx$^2$
kx$^2$=2U
k=$\frac{2U}{x^2}$

Published by
Brooks Cole

ISBN 10:
0-53449-636-9

ISBN 13:
978-0-53449-636-4

k=$\frac{2U}{x^2}$

U=$\frac{1}{2}$kx$^2$
kx$^2$=2U
k=$\frac{2U}{x^2}$

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