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3. A gas with a density of 1.25 kg/m³ enters a 125 mm diameter pipe at a velocity of 3.00 m/s.
The pipe decreases diameter to 75.0 mm and the density of the gas is increased to 2.00 kg/m³.
Find the velocity and the mass flow rate of gas in the 75.0 mm diameter pipeline.
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Can you please perform this with Bernoulli's Theory

H = h + P/W + V^2/2g

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