A Large Water Tank, Open at the Top, Has a Small

question 89

Multiple Choice

A large water tank, open at the top, has a small hole in the bottom.When the water level is 30 m above the bottom of the tank, the speed of the water leaking from the hole:

• A)is 2.5 m/s
• B)is 24 m/s
• C)is 44 m/s
• D)cannot be calculated unless the area of the hole is given
• E)cannot be calculated unless the areas of the hole and tank are given

---

Definitions:

Paternalism

The policy or practice on the part of people in positions of authority of restricting the freedom and responsibilities of those subordinate to or dependent upon them, supposedly for the latter’s own good.

Task System

A labor system predominantly used in the rice and indigo plantations of the American South, where enslaved people were assigned specific tasks to complete each day, after which they had some personal time.

Historical Significance

The importance assigned to a past event, character, or invention, reflecting its impact on history and its influence on future developments or attitudes.

Underground Railroad

A network of secret routes and safe houses used in the United States during the 19th century to help enslaved African Americans escape to free states and Canada.