Question

Calculate the speed with which water flows from a hole in the dam of a large irrigation canal. The hole is 0.80 m below the surface of the water. If the hole has a radius of 2.0 cm, what is the flow rate of the water from the hole?

Answer 1

Bernoulli's equation:

mgh=1/2 m v^2

v=1.6g

flow rate: I assume you mean mass flow rate, not volume rate.

flow rate=density*velocity*areahole

Answer 2

You're explaining was awful it was 0 help. Worse than my physics teachers explaining.

Answer 3

2 A circular dam has a radius of 10 m and a height of 3 m. Of the dam will be filled
with water from a pipe with an inside diameter of 10 cm and a water flow of 10
litres per second, calculate the time taken to fill the dam to a point 10 cm from the
top of the dam.