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## Homework Statement

The radius of a solid sphere is measured to be (6.30 ± 0.26) cm, and its mass is measured to be (1.81 ± 0.08) kg. Determine the density of the sphere in kilograms per cubic meter and the uncertainty in the density. (Use the correct number of significant figures. Use the following formula to calculate the uncertainty in the density:

Δρ/ρ = Δm/m + 3Δr/r

## Homework Equations

Δρ/ρ = Δm/m + 3Δr/r

D = M/V

## The Attempt at a Solution

I'm going to assume you use the radius and calculate the volume of a sphere (4/3pi(r^3), and then convert to m^3.

Use the above information to calculate the density, but how does uncertainty come into play here? Do I plug it into the above equations along with the numbers, or do I do it all at the end with one formula?

I'm a newbie at Physics, really trying to improve myself. Don't laugh guys :(