The reading of pressure meter attached with a closed pipe is `3.5 xx 10^(5)Nm^(-2)`. On opening the value of the pipe, the reading of the pressure meter is reduced to `3.0 xx 10^(5) Nm^(-2)`. Calculate the speed of the water flowing in the pipe.

Explanation

To calculate the speed of the water flowing in the pipe, we can use Bernoulli's equation, which relates the pressure, velocity, and height of a fluid in a streamline flow.

### Step-by-Step Solution:

1. **Identify the Given Data:**
- Initial pressure before opening the pipe, \( P_1 = 3.5 \times 10^5 \, \text{N/m}^2 \)
- Final pressure after opening the pipe, \( P_2 = 3.0 \times 10^5 \, \text{N/m}^2 \)
- Density of water, \( \rho = 10^3 \, \text{kg/m}^3 \) (approximately)
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