Physioex review sheet 33B

I need help with the following questions:

If the driving pressure in the left beaker was 100mmHg, how could you adjust the conditions of the experiment to completely stop the fluid flow?

What would happen if the right side of the heart pumped faster than the left side of the heart?

When you change the radius of the fight flow tube in Pump Mechanics, the resulting plot looks different than the radius plot in the Vessel Resistance experiment.  How would the plot look if you changed the radius of both tubes in Pump Mechanics instead of just the right flow tube?

Why are valves needed in the Pump Mechanics equipment?

What happens to blood flow if peripheral resistance equals pump pressure?

Thanks.