Final answer:
To find the flow rate, we can use Bernoulli's equation and the information given in the problem.
Step-by-step explanation:
To find the flow rate, we can use Bernoulli's equation and the information given in the problem. Bernoulli's equation states that the pressure in a fluid is inversely proportional to its speed.
In this case, water is exiting from a nozzle into atmospheric pressure. The reading of the manometer friction is given as 90 cm. Using Bernoulli's equation, we can calculate the velocity of the water as it exits the nozzle.
Once we have the velocity, we can determine the flow rate using the formula Q = A * v, where Q is the flow rate, A is the cross-sectional area of the nozzle, and v is the velocity of the water.