Case Study: Toricelli's Law: Quiz

Problem 2

Consider the cylindrical tank with outlet area b and cross sectional area A. For each of the following physical changes in the tank, describe the effect on the time it takes to empty the tank.

  1. Double the outlet area b
  2. Decrease the volume of the tank by 40%, keeping the height of the tank the same
  3. Increase the height of the tank by one third
  4. Move the tank to the Moon, whose gravity is one sixth that of the Earth

Answers, problem 2

  1. This decreases the time to empty the tank by one half
  2. This decreases the time to empty the tank by 60%
  3. This increases the time to empty the tank by one third
  4. This increases the time to empty the tank by a factor of about 2.5

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