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Science- physics

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An aluminum bar weighs 17 pounds in air. How much force is required to lift the bar while it is immersed in gasoline? The weight of aluminum is 170 pounds/ft3 and that of gasoline is 42 pounds/ft3.

I know that the answer is 12.8 pounds but how do I get to that answer? Thanks<3

  • Science- physics -

    I want to know the answer too :( Ashton Irwin, help us!!!!!!

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