Physics: Principles with Applications (7th Edition)

by Giancoli, Douglas C.

Published by Pearson

ISBN 10: 0-32162-592-7

ISBN 13: 978-0-32162-592-2

Chapter 1 - Introduction, Measurement, Estimating - General Problems - Page 20: 52

Answer

$99.99997 \%$ accurate.

Work Step by Step

Calculate the percentage deviation from 100 percent perfection. $$\frac{8 s}{3.156 \times 10^{7}s} \times 100 \%=3 \times 10^{-5} \%$$ One could say the watch is $99.99997 \%$ accurate.

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