Second is my work, could you let me know how many sig figs each number has and w

Question

Second is my work, could you let me know how many sig figs each number has and why.
LON-CAPA (2) Ranking S C secure https://spock.physastuga.edu/res/msu/kortermey/physicslib/units/significant problem#0 PHYS 1111: Intro Physics I (Mechanics), Janina N. Vega-rodriguez (Student -section : 27121) Main Menu Contents Grades Course Contents » » Problem Set 1 (2) Ranking Significant Digits Rank the following values in order of increasing number of significant digits. 3300 5 1.245-10 1 10.24 2 1300 4 3.2-103 Submit Answer Incorrect. Tries 3/5 Previous Tries Threaded View Chronological view Other Views NEW Ranking order BJ Cooley Reply (Tue Jan 9 11:25:25 am 2018 (EST) If two values have the same number of significant digits, assign the same rank and skip the next one (like in sports). Hi all, For this problem, you should choose "1" for the number(s) with the fewest significant digits. Dr. Cooley NEW Change My settings for this discussion: 1. Display All posts 2. Not new -Once marked not Threaded View Chronological View Other Views.

Explanation / Answer

There are three rules on determining how many significant figures are in a number:

1) Non-zero digits are always significant.

2) Any zeros between two significant digits are significant.

3) A final zero or trailing zeros in the decimal portion ONLY are significant.

Using these you can find the number of significant figures in a number. For the given numbers, the number of significant figures are:

300. – 3sf (the zeros are also significant because of the decimal point)

1.245*104 - 4sf ( 1,2,4,5 are the sf)

0.24 – 2sf

300 – 1sf (the zeros are not significant, rule 3)

3.2*103 – 2sf

Ranking:

300. – 4

1.245*104 - 5

0.24 – 2

300 – 1

3.2*103 – 2

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.