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## Homework Statement

A metal wire is given a ceramic coating to protect it against heat. The machine that applies the coating

does not do so very uniformly.

The wire is in the shape of the curve

The density of the ceramic on the wire is

Use a line integral to calculate the mass of the ceramic on the wire.

## Homework Equations

∫ f(r,t,ρ) drdtdρ

## The Attempt at a Solution

Here's my 'attempt at a solution':

I tried to make a triple integral, but I don't quite know what to do next.

∫

_{0}

^{π}∫

_{0}

^{π}∫

_{0}

^{π}