Two horizontal pipes of different diameters are connected together by a value. Their diameters are 3 cm and 9 cm. Water flows at speed 6 m `s^(-1)` in the first pipe and the pressure in it is `2 xx 10^(5) N m^(-2)`. Find the water pressure and speed in the second pipe.

Explanation

To solve the problem, we will follow these steps:

### Step 1: Identify the given values
- Diameter of the first pipe, \( D_1 = 3 \, \text{cm} = 0.03 \, \text{m} \)
- Diameter of the second pipe, \( D_2 = 9 \, \text{cm} = 0.09 \, \text{m} \)
- Velocity in the first pipe, \( V_1 = 6 \, \text{m/s} \)
- Pressure in the first pipe, \( P_1 = 2 \times 10^5 \, \text{N/m}^2 \)

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