- #1
anwarjackson
- 3
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A distance R is measured to be 4.000±0.006 m. What is the absolute uncertainty in R to the power of negative two?
Here is what i tried, apparently my units are not correct, if anyone can suggest the porper units that would be much appreciated.
let x be uncertainty of R^-2,
let y be uncertainty of R
let n be raised power (in this case -2)x = n(R^n-1)y
= 2 (1/4)0.006
= 0.003
What am I doing wrong? Question was posted on the CAPA problem sets for my physics class, CAPA keeps saying improper units however I've attempted to use millimeters, centimeters, meters and even kilometers.
Therefore, uncertainty of R^-2 is 0.0625 ± 0.003 m
Here is what i tried, apparently my units are not correct, if anyone can suggest the porper units that would be much appreciated.
let x be uncertainty of R^-2,
let y be uncertainty of R
let n be raised power (in this case -2)x = n(R^n-1)y
= 2 (1/4)0.006
= 0.003
What am I doing wrong? Question was posted on the CAPA problem sets for my physics class, CAPA keeps saying improper units however I've attempted to use millimeters, centimeters, meters and even kilometers.
Therefore, uncertainty of R^-2 is 0.0625 ± 0.003 m
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