A large storage tank open at the top and filled with water

Question

Compute the each part of given problem:

Problem: A large storage tank, open at the top and filled with water, develops a small hole in its side at a point 16.4 m below the water level. The rate of flow from the leak is found to be 2.40 x 10^-3 m³/min.

Part I: Determine the speed at which the water leaves the hole.

m/s

Part II: Determine the diameter of the hole.

m

Please explain each step and equations used to get solution.