I have a few questions about significant figures (sig figs)
Using a meter stick to measure a table which is about two meters long, the actual measurement is 1818 mm. Should I only accept the first three digits, making the final answer 1820 mm? What is my extimated error, +/- 1mm?
Also take the length of the table, say it is 645 mm. Would the error estimation still be: +/-1mm or possibly less?
(Remember I am using a meter stick for all measurements)
When finding the area, what numbers would I compute and would I keep only 3 sig figs?
Using the 3 sig fig #'s, I come up with:
1 173 900 mm^2
Would that be the correct answer, and if it is what is my error percentage?
Thank you.
2006-10-09
11:12:29
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1 answers
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asked by
Matthew B
2