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## Homework Statement

The density of a solid sphere of radius R=10cm and mass M=15kg varies with distance from the center according to the equation p=po*e^(r/R). Determine the constant po.

## Homework Equations

density= mass over volume.

## The Attempt at a Solution

Change density to mass over volume. Set r = 0. Solve for po and get 3580kg/m3.

Apparantly the equation should be integrated, But I dont understand what the integration would give me?