College Physics
1st Edition
ISBN: 9781938168000
Author: Paul Peter Urone, Roger Hinrichs
Publisher: OpenStax College
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 1, Problem 3CQ
If two different theories describe experimental observations equally well, can one be said to be more valid than the other (assuming both use accepted rules of logic)?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
(a) What is the relationship between the precision and the uncertainty of a measurement? (b) What is the relationship between the accuracy and the discrepancy of a measurement?
A marathon runner completes a 42.188-km course in 2 h, 35 min, and 39 s. There is an uncertainty of 28 m in the distance traveled and an uncertainty of 1 s in the elapsed time. (Give all answers to the appropriate number of significant figures. Note that uncertainties should be reported to one significant figure and percent uncertainties should be reported to two significant figures.)
(a) Calculate the percent uncertainty in the distance.
_________%
(b) Calculate the percent uncertainty in the elapsed time.
__________%
(a) A person’s blood pressure is measured to be 120+2 mm Hg. What is its percent uncertainty? (b) Assuming the same percent uncertainty, what is theuncertainty in a blood pressure measurement of 80mm Hg?
Chapter 1 Solutions
College Physics
Ch. 1 - Models are particularly useful in relativity and...Ch. 1 - How does a model differ from a theory?Ch. 1 - If two different theories describe experimental...Ch. 1 - What determines the validity of a theory?Ch. 1 - Certain criteria must be satisfied if a...Ch. 1 - Can the validity of a model be limited, or must it...Ch. 1 - Classical physics is a good approximation to...Ch. 1 - When is it necessary to use relativistic quantum...Ch. 1 - Can classical physics be used to accurately...Ch. 1 - Identify some advantages of metric units.
Ch. 1 - What is the relationship between the accuracy and...Ch. 1 - Prescriptions for vision correction are given in...Ch. 1 - The speed limit on some interstate highways is...Ch. 1 - A car is traveling at a speed of 33 m/s. (a) What...Ch. 1 - Show that 1.0m/s=3.6Km/h. Hint: Show the explicit...Ch. 1 - American football is played on a 100-yd-long...Ch. 1 - Soccer fields vary in size. A large soccer field...Ch. 1 - What is the height in meters of a person who is 6...Ch. 1 - Mount Everest, at 29,028 feet, is the tallest...Ch. 1 - The speed of sound is measured to be 342 m/s on a...Ch. 1 - Tectonic plates are large segments of the Earth's...Ch. 1 - (a) Refer to Table 1.3 to determine the average...Ch. 1 - Suppose that your bathroom scale reads your mass...Ch. 1 - A good-quality measuring tape can be off by 0.50...Ch. 1 - (a) A car speedometer has a 5.0% uncertainty. What...Ch. 1 - An infant's pulse rate is measured to be 1305...Ch. 1 - (a) Suppose that a person has an average heart...Ch. 1 - A can contains 375 mL of soda. How much is left...Ch. 1 - State how many significant figures are proper in...Ch. 1 - (a) How many significant figures are in the...Ch. 1 - (a) If your speedometer has an uncertainty of 2.0...Ch. 1 - (a) A person's blood pressure is measured to be...Ch. 1 - A person measures his or her heart rate by...Ch. 1 - What is the area of a circle 3.102 cm in diameter?Ch. 1 - If a marathon runner averages 9.5 mi/h, how long...Ch. 1 - A marathon runner completes a 42.188-km course in...Ch. 1 - The sides of a small rectangular box are measured...Ch. 1 - When non-metric units were used in the United...Ch. 1 - The length and width of a rectangular room are...Ch. 1 - A car engine moves a piston with a circular cross...Ch. 1 - How many heartbeats are there in a lifetime?Ch. 1 - A generation is about one-third of a lifetime....Ch. 1 - How many times longer than the mean life of an...Ch. 1 - Calculate the approximate number of atoms in a...Ch. 1 - Approximately how many atoms thick is a cell...Ch. 1 - (a) What fraction of Earth's diameter is the...Ch. 1 - (a) Calculate the number of cells in a hummingbird...Ch. 1 - Assuming one nerve impulse must end before another...
Additional Science Textbook Solutions
Find more solutions based on key concepts
11. (II) Determine the vector , given the vectors and in Fig. 3-35
Physics: Principles with Applications
TEST YOUR UNDERSTANDING OF SECTION 4.1 Figure 4.5 shows a force acting on a crate. With the x- and y-axes show...
University Physics with Modern Physics (14th Edition)
1. If an object is not moving, does that mean that there are no forces acting on it? Explain.
College Physics: A Strategic Approach (3rd Edition)
Two students the second experiment, in which glider S is fixed in place. Student 1: “When one objects hits anot...
Tutorials in Introductory Physics
If acceleration is proportional to the net force or is equal to net force.
Conceptual Physics (12th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A marathon runner completes a 42.188-km course in 2 h, 39 min, and 25 s. There is an uncertainty of 24 m in the distance traveled and an uncertainty of 1 s in the elapsed time. (Give all answers to the appropriate number of significant figures. Note that uncertainties should be reported to one significant figure and percent uncertainties should be reported to two significant figures.) (b) Calculate the percent uncertainty in the elapsed time. (c) What is the average speed in meters per second? (d) What is the uncertainty in the average speed?arrow_forwardA marathon runner completes a 42.188-km course in 2 h, 30 min, and 12 s. There is an uncertainty of 25 m in the distance traveled and an uncertainty of 1 s in the elapsed time. (a) Calculate the percent uncertainty in the distance. (b) Calculate the percent uncertainty in the elapsed time. (c) What is the average speed in meters per second? (d) What is the uncertainty in the average speed?arrow_forwardA series of four measurements of the ratio of the circumference to diameter of a disk are made. The results of these measurements are: 3.140, 3.133, 3.132, 3.133. The average of the four measurements is the experimental value for Pi-Lab and the accepted value is Pi = 3.141. What is the percent error of these measurements? a) 1 % b) 2% c) 0.5% d)0.2%arrow_forward
- Certain criteria must be satisfied if a measurement or observation is to be believed. Will the criteria necessarily be as strict for an expected result as for an unexpected result?arrow_forwarda) You wish to compare the two experimental results the physicist got, so you decide to find the percent difference between these two values using the standard equation you learned in physics class: Substitute the following values for E1 and E2 and calculate the percent difference using the formula given below: E1 9.96 m/s2 E2 9.72 m/s2 Percent differnce___arrow_forwardAn analyst weighed an object and recorded mass as 400 g. Considering the uncertainty in the measurements, (a) Indicate the upper mass. (b) Indicate the lower mass (c) indicate the range of uncertainty.arrow_forward
- An object is released from rest and falls in free fall motion. The speed v of the object after it has fallen a distance y is given by v 2gy. In an experiment, v and y are measured and the measured values are used to calculate g. If the percent uncertainty in the measured value of v is 4.80% and the percent uncertainty in the measured value of y is 5.00%, what is the percent uncertainty in the calculated value of g? (Do not enter units for this answer.) X%arrow_forwardif any data is missing then consider suitable data by yourself.arrow_forwardMeasured values are usually presented as mean plus or minus uncertainty. If two experimental valuesare (8.1 ± 0.5) and (7.9 ± 0.4), what is the uncertainty of their difference?arrow_forward
- An experiment is performed to obtain the value of a physical property. If the true (i.e., correct) value of the property is 50 and the measured (i.e., experimental) value is 33, the percent error of the experimental result is: Your Answer: Answerarrow_forwardpatient is to be given an intitial dose of 23.4 mL of a medication and 1.2 mL/h thereafter for 8.5h. write an equation that relates the volume of medication administered as a function of timearrow_forwardWhat is the percent uncertainty in the area of a circle whose radius is 1.8 × 104 cm?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
Stars and GalaxiesPhysicsISBN:9781305120785Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Stars and Galaxies
Physics
ISBN:9781305120785
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Half life | Radioactivity | Physics | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=IDkNlU7zKYU;License: Standard YouTube License, CC-BY