What must be the area of a suction cup

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What must be the area of a suction cup that is completely evacuated and a ceiling if the cup is to support a child who weighs 30 kg?

Reference no: EM13305076

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What must be the area of a suction cup : What must be the area of a suction cup that is completely evacuated and a ceiling if the cup is to support a child who weighs 30 kg
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