A 7/16 nut driver with a 2 1/2 inch diameter handle is used to install a 4 20 UNC bolt into a robotic arm. 22. Determine the circumference where the effort is applied. 23. Determine the pitch of the screw. 24. What is the mechanical advantage gained in the system? 25. Ideally, how much force can be overcome if 5 lb of force is exerted? 26. Why does a screw have such a huge mechanical advantage? (Hint: There are 2 factors playing a role in this)