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Faucet Flow

  • A faucet with running water
  • Procedure: Turn the faucet on. As the flow accelerates downward, the cros-sectional area of the water stream will decrease.

    Explanation: As the flow accelerates toward the sink (from gravity), its speed increases. Since the water is incompressible, this increase in speed reduces the area because the mass flux of water must be conserved.

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