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College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000

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BuyFindarrow_forward

College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000
Textbook Problem

Water is shot nearly vertically upward in a decorative fountain and the stream is observed to broaden as it rises. Conversely, a stream of water falling straight down from a faucet narrows. Explain why, and discuss whether surface tension enhances or reduces the effect in each case.

To determine

Why the stream of fountain observed to be broaden as it rises and stream become narrow when fall straight down?

Explanation

This is because when a stream of water goes high, the kinetic energy of the flow of water goes on decreasing and it is changed into potential energy and when waterfall from a certain height potential energy of water changes into kinetic energy and the velocity of flow of liquid increases.

According to the principle of continuity

To maintain the constant flow rate, when the velocity decreases then the area of cross section increases and vice versa

That's why the stream of fountain obs...

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