Question

1) Why does velocity increase when water flowing in broader pipe enters a narrow pipe?

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Answer 1

Answer:

When water flowing in broader pipe enters a narrow pipe, the area of cross-section of the water decreases, therefore, the velocity of water increases

Answer 2

Answer:

because velocity increase water

Explanation:

when we throw the water in sink , then how the water goes in the sink slowly or fast

its answer is fast and rotate means like a (Tornado).