Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

Published by Pearson
ISBN 10: 0133942651
ISBN 13: 978-0-13394-265-1

Chapter 1 - Concepts of Motion - Exercises and Problems - Page 29: 27


a) $ 6 \frac{2}{3}m $ b) $ 100,000m $ c) $ 30m/s $ d) $ ≈ 0.2m $

Work Step by Step

Using data from the approximation table specified in the question, multiply each of the given units by the ratio between units. a) $ 20ft \times \frac{1m}{3ft} ≈6 \frac{2}{3}m$ b) $ 60mi \times \frac{1km}{0.6mi} \times \frac{1000m}{1km} ≈ 100,000m$ c) $ 60mph \times \frac{1m/s}{2mph} ≈ 30m/s $ d) $ 8in \times \frac{10cm}{4in} \times \frac{1m}{100cm} ≈ 0.2m $
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