College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Question
Find the number of significant figures in each of the following.
(a)
61.8 ± 0.3
(b)
3.86 ✕ 109
(c)
2.80000 ✕ 10−6
(d)
0.0045
Expert Solution
Step 1: Introduction
Significant figures are the number of digits which is compulsory to give the accurate result of any calculation.
Rules of Significant Figures:
All non-zero numbers are significant (4508 – 4 significant figures)
Zeros between two non-zero digits are significant (40.025 – 5 significant figures)
Leading zeros are NOT significant (480,00 – 2 significant figures)
Trailing zeros to the right of the decimal are significant (8.00 – 3 significant figures)
Trailing zeros in a whole number with the decimal are significant (0.00090 – 2 significant figures)
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