Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 32 - Elementary Particles - Problems - Page 945: 29

Answer

$7.5\times10^{-21}s $

Work Step by Step

Estimate the lifetime by using equation 28–2. $$\Delta E \approx \frac{\hbar}{\Delta t}$$ $$\Delta t \approx \frac{\hbar}{\Delta E}$$ $$=\frac{1.055\times 10^{-34}J \cdot s}{88\times10^3eV}\frac{1eV}{1.60\times10^{-19}J}$$ $$ \approx 7.5\times10^{-21}s $$
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