Water flows in a pipeline composed of (75-mathrm{mm}) and (150-mathrm{mm}) pipe. Calculate the mean velocity in the

Question:

Water flows in a pipeline composed of $75-\mathrm{mm}$ and $150-\mathrm{mm}$ pipe. Calculate the mean velocity in the $75-\mathrm{mm}$ pipe when that in the $150-\mathrm{mm}$ pipe is $2.5 \mathrm{~m} / \mathrm{s}$. What is its ratio to the mean velocity in the $150-\mathrm{mm}$ pipe?

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