A a 45-kg three legged stool supports a 68-kg person if, Ask an Expert

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A) A 4.5-kg, three legged stool supports a 68-kg person. If each leg of the stool has a cross-sectional diameter of 3.0 cm and the weight of the person is evenly distributed, determine the pressure exerted on the floor by each leg.

B) For physics show-and-tell, you want to impress the class by sipping water through a long straw. If you hold the straw vertically, determine the length of the longest straw that you could, in principle, drink from in this manner.

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