Between 1911 and 1990, the top of the leaning bell tower at Pisa, Italy, moved toward the south at an average rate of 1.2 mm/y. The tower is 55 m tall. In radians per second, what is the average angular speed of the tower's top about its base?

Explanation

To find the average angular speed of the top of the Leaning Bell Tower of Pisa about its base, we can follow these steps:

### Step 1: Understand the relationship between linear velocity and angular velocity
The relationship between linear velocity (v) and angular velocity (ω) is given by the formula:
\[ v = r \cdot \omega \]
where:
- \( v \) is the linear velocity,
- \( r \) is the radius (in this case, the height of the tower),
...