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Methane enters a 3.00-cm ID pipe at 30.0°C and 10.0 bar with an average velocity of...

Methane enters a 3.00-cm ID pipe at 30.0°C and 10.0 bar with an average velocity of 4.00 m/s and emerges at a point 200.0 m lower than the inlet at 30.0°C and 9.00 bar.

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