A water tank has a hole at a distance of 7 m from free water surface. Find the velocity of water through the hole. If the radius of the hole is 2 mm what is the rate of flow of water?

Explanation

To solve the problem, we will follow these steps:

### Step 1: Calculate the velocity of water through the hole.
We can use Torricelli's theorem, which states that the speed (v) of fluid flowing out of an orifice under the force of gravity is given by the formula:

\[ v = \sqrt{2gh} \]

Where:
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