Question

Give five examples for increase in pressure and five examples for decrease in pressure .

Answer 1

Answer:

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Explanation:

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Answer 2

Explanation:

5 example in which pressure increase with decrease in contact area are:-

1.A sharp knife cuts more effectively than a blunt knife as it has a very small  surface area and exerts more pressure.

2.A nail has a pointed edge so that it exerts more thrust or pressure.

3.Tip of a sewing needle.

4.Edge of an arrow.

5.Edges of tools used to pierce things.

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