## Physics: Principles with Applications (7th Edition)

Published by Pearson

# Chapter 1 - Introduction, Measurement, Estimating - Problems: 6

#### Answer

a. 4% b. 0.4% c. 0.06%

#### Work Step by Step

a. Percentage uncertainty = $\frac{0.2 s}{5.5 s} \times 100 \%=4 \%$ b. Percentage uncertainty = $\frac{0.2 s}{55 s} \times 100 \%=0.4 \%$ c. Percentage uncertainty = $\frac{0.2 s}{330 s} \times 100 \%=0.06 \%$

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