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Why does suction hook stick to the surface of wall and does not drop off
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Why does suction hook stick to the surface of wall and does not drop off

User Thierry J
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Answer:When you press a suction cup against a wall or window, you push out the air inside it, eliminating the pressure inside the suction cup and creating a vacuum which seals the cup tightly to the surface you want it to stick to. ... Friction keeps the cup from sliding.

Step-by-step explanation:

User Oisyn
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