Thinking Like an Engineer
4th Edition
ISBN: 9781269910989
Author: Elizabeth A. Stephan, David R. Bowman, William J. Park, Benjamin L. Sill, Matthew W. Ohland
Publisher: Pearson Learning Solutions
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Textbook Question
Chapter 5.7, Problem 3CC
In each of the following cases, a value of the desired quantity has been determined in some way, resulting in a number displayed on a calculator or computer screen. Your task is to round each number to a reasonable number of significant digits—up if a higher value is conservative, down if a lower value is conservative, and to the nearest value if it does not make a difference. Specify why your assumption is conservative.
| (a) | The mass of an adult human riding on an elevator | 178.8 pounds |
| (b) | The amount of milk needed to fill a cereal bowl | 1.25 cups |
| (c) | The time it takes to sing Happy Birthday | 32.67 seconds |
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Chapter 5 Solutions
Thinking Like an Engineer
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