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(a) A very powerful vacuum cleaner has a hose 3.00 cm in diameter. With the end of the hose placed perpendicularly on the flat face of a brick, what is the weight of the heaviest brick that the cleaner can lift?

(b) An octopus uses one sucker of diameter 3.00 cm on each of the two shells of a clam in an attempt to pull the shells apart. Find the greatest force the octopus can exert on a clamshell in salt water 31.8 m deep.

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Category:- Physics
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