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## Homework Statement

An Aluminium rod has a diameter of 40mm. and is 750mm long. If the temperature difference between the ends of the rod is 100C .

Take the thermal conductivity of Aluminium to be 235 Wm-1K-1

## Homework Equations

k * A * ΔT / L

## The Attempt at a Solution

235 * 0.097 m * 100 / 0.75

The answer is supposed to be 39.4 Js

^{-1}but I can't get it right? So I don't know if I'm doing something wrong, and I've tried so many times. I don't know what I'm doing wrong.

Thanks

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