Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
4th Edition
ISBN: 9780133942651
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
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Textbook Question
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Chapter 1, Problem 1CQ
How many significant figures does each of the following numbers have?
a. 0.73 b. 7.30 c. 73 d. 0.073
Expert Solution
To determine
How many significant figures does each of the following numbers have?
a) 0.73; b) 7.30; c) 73; d) 0.073
Explanation of Solution
a) Two (2) significant figures; b) Three (3) significant figures; c) Two (2) significant figures; d) Two (2) significant figures.
Expert Solution
To determine
Section 1:
How many significant figures does the following number have? a) 0.73
Answer to Problem 1CQ
Solution:
Two (2) significant figures.
Explanation of Solution
Given info:
The number is 0.73.
For the number 0.73 we have two significant figures, this is because the number zero (0) on the left of the number 73 is not a significant digit.
Expert Solution
To determine
Section 2:
How many significant figures does the following number have? b) 7.30
Answer to Problem 1CQ
Solution:
Three (3) significant figures.
Explanation of Solution
Given info:
The number is 7.30.
For the number 7.30 we have three significant figures, this is because the number zero on the right is a significant digit too.
Expert Solution
To determine
Section 3:
How many significant figures does the following number have? c) 73
Answer to Problem 1CQ
Solution:
Two (2) significant figures.
Explanation of Solution
Given info:
The number is 73.
In this case we have two significant figures, exact digits or digits without decimal are all significant.
Expert Solution
To determine
Section 4:
How many significant figures does the following number have? d) 0.073
Answer to Problem 1CQ
Solution:
Two (2) significant figures.
Explanation of Solution
Given info:
The number is 0.073.
For the number 0.073 we have two significant figures, this is because the zeros (0) on the left of the number 73 are not significant digits.
Conclusion:
a) Two (2) significant figures; b) Three (3) significant figures; c) Two (2) significant figures; d) Two (2) significant figures.
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Chapter 1 Solutions
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
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