- #1

#### Ahmed Farhan

**1.
**

**2.**The force due to gas pressure = p(V

_{0}/V) dA

The force due to atmospheric pressure = p dA

The force due to electrostatic repulsion = undetermined

**3.**Though I don't surely know what the expression for electric force should be, I took an educated guess and solved using the relation:

force of gas pressure + electric repulsion = atmospheric pressure force

but couldn't get the expression asked for in the problem. Can anyone please take a look?