Concept explainers
(a)
The percentage of uncertainty of a hand-timed measurement of
(a)
Answer to Problem 7P
Solution:4%
Explanation of Solution
Given:
Time intervals measured with a stopwatch typically have an uncertainty of about 0.2 s due to human reaction time atthe start and stop moments.
Formula used:
Here, the formula used is
Calculation:
Conclusion:
Percent uncertainty of a hand-timed measurement of 5.5 s is almost 4%.
(b)
The percentage of uncertainty of a hand-timed measurement of 55 s.
(b)
Answer to Problem 7P
Solution:0.4%
Explanation of Solution
Given:
Time intervals measured with a stopwatch typically have an uncertainty of about 0.2 s due to human reaction time at the start and stop moments.
Formula used:
Here, the formula used is
Calculation:
Conclusion: Percent uncertainty of a hand-timed measurement of 55 s is almost 0.4%.
(c)
The percentof uncertainty of a hand-timed measurement of 5.5 min.
(c)
Answer to Problem 7P
Solution:0.1%
Explanation of Solution
Given:
Time intervals measured with a stopwatch typically have an uncertainty of about 0.2 s due to human reaction time atthe start and stop moments.
Formula used:
Here, the formula used is −
Calculation:
Conclusion:Percentof uncertainty of a hand-timed measurement of 5.5 min is almost 0.1%.
Chapter 1 Solutions
Physics: Principles with Applications
Additional Science Textbook Solutions
The Cosmic Perspective
Conceptual Physical Science (6th Edition)
University Physics with Modern Physics (14th Edition)
College Physics: A Strategic Approach (3rd Edition)
An Introduction to Thermal Physics
Conceptual Integrated Science
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON