Before starting our computational experiments, let us familiarize ourselves with our experimental setup. The first component of our experimental setup is a slightly modified version of the Bike Tire model from the previous lesson.

1. There is no "add particles" button anymore. We will decide the number of particles inside the bike tire before running each experiment. 
2. There is a new   slider. This slider will help us run experiments until the system stabilizes (e.g., the model will stop).

Now let's begin with running three simple experiments:

1. Set the "number-of-particles" parameter to 100 and the "ticks-to-run" parameter to 15.
   1. Click the   button to set-up the experiment.
   2. Then  button to run the experiment.
       
2. Once the experiment is completed, move your mouse over the plot (as shown on the right) and see how the pressure has changed over time. Note down the final pressure of the system.
    
3. Repeat the same procedure with 200 particles and 15 ticks. Note the resulting pressure.
4. Repeat the same procedure with 300 particles and 15 ticks. Note the resulting pressure.
5. Answer the questions below the model.