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## Homework Statement

Hey I'm building a graph of period squared vs. mass for simple harmonic motion

finding the slope and getting K for a spring.

since T^2 = ((4*pi^2)/k)m

the slope is (4*pi^2)/k

so I get my slope from my graph and it has an uncertainty of +- 0.2

to get K we divide (4*pi^2) by the M +-0.2

just wondering what the rule is when your dividing a contstant by a number with uncertainty what the uncertainty is in the answer.?