Question

Why the suck er sticks to the
surface
over which it
is pressed?....
The first answer will get the brilliant tag​

Answer 1

Answer:

When you press the rubber suc ker on a plain surface, most of the air between its cup and the surface escapes out and a vaccum is created. The suc ker sticks to the surface because the pressure of atmosphere acts on it.

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Answer 2

Answer:

When we press a rubber pad on a smooth surface, it sticks to the surface. This happens because there is very little air between the pad and the smooth surface to push from inside. Therefore, the greater atmospheric pressure from outside pushes the pad firmly to the surface.

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