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anonymous

  • one year ago

use dimensional analysis to convert 7.8*10^-10 m/day to millimeters per hour

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  1. anonymous
    • one year ago
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    how many hours in a day?

  2. anonymous
    • one year ago
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    24 @peachpi

  3. anonymous
    • one year ago
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    |dw:1441214366404:dw|

  4. anonymous
    • one year ago
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    now how many millimeters in a meter?

  5. anonymous
    • one year ago
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    1000? @peachpi

  6. anonymous
    • one year ago
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    |dw:1441214730064:dw|

  7. anonymous
    • one year ago
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    multiply the numbers in the numerator, divide by the ones in the denominator |dw:1441214784040:dw|

  8. anonymous
    • one year ago
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    what?????? @peachpi

  9. anonymous
    • one year ago
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    so its 7.8*10*1000/24??

  10. anonymous
    • one year ago
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    close. keep the -10 exponent on the original number (7.8*10^-10)*1000/24

  11. anonymous
    • one year ago
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    oh ok so is that the fimal answer in scientific form?

  12. anonymous
    • one year ago
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    it's a pretty small number so once you put that in a calculator it will most likely give you scientific notation

  13. anonymous
    • one year ago
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    ok i got 3.25*10^-8. is that right

  14. anonymous
    • one year ago
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    yeah

  15. anonymous
    • one year ago
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    okthank you so much

  16. anonymous
    • one year ago
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    yw

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