## Problem 8.3

$\Delta U=q+w$

Juanalv326
Posts: 49
Joined: Fri Sep 29, 2017 7:04 am

### Problem 8.3

Air in a bicycle pump is compressed by pushing in the
handle. If the inner diameter of the pump is 3.0 cm and the
pump is depressed 20. cm with a pressure of 2.00 atm, (a) how
much work is done in the compression?

What needs to be done in order to get the correct answer. I know that we need to use the work equation, but what do we need to convert?

Juanalv326
Posts: 49
Joined: Fri Sep 29, 2017 7:04 am

### Re: Problem 8.3

Wait, nevermind I got it. I simply need to find volume using the area of circle and multiply by the distance. The convert to liters and plug it back into my equation.

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