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The fire fighters attach brass jets at t...

The fire fighters attach brass jets at the end of water pipes. Why?

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### Step-by-Step Solution: 1. **Understanding the Question**: The question asks why firefighters attach brass jets at the end of water pipes. To answer this, we need to consider the principles of fluid dynamics, particularly the equation of continuity. 2. **Equation of Continuity**: The equation of continuity states that for an incompressible fluid flowing steadily, the product of the cross-sectional area (A) and the velocity (V) at any two points along the flow must be constant. Mathematically, this can be expressed as: \[ A_1 V_1 = A_2 V_2 \] ...
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