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physics help

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Some researchers believe that the dinosaur Barosaurus held its head erect on a long neck, much as a giraffe does. If so, fossil remains indicate that its heart would have been about 13 m below its brain. Assume that the blood has the denisty of water, and calculate the amount by which the blood pressure in the heart would have exceeded that in the brain. Size estimates for the single heart need to withstand such a pressure range up to two tons. Alternatively, Barosaurus may have had a number of smaller hearts.

  • physics help -

    What is the weight of a column of water 13m high? Assume some area A.

    Pressure= weight/A

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