| 21. | Other derived units such as the negative helen ( the power to " beach " ships ) have also been described.
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| 22. | Radon concentration in the atmosphere is usually measured in becquerel per cubic meter ( Bq / m 3 ), the SI derived unit.
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| 23. | Unlike all other Planck base units and most Planck derived units, the Planck mass has a scale more or less conceivable to humans.
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| 24. | And if so, I suppose they'll have taken the next step and use the derived units like Newton and such too.
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| 25. | The formal definitions of the Ampere and the Coulomb establish that the Ampere is the fundamental unit, and the Coulomb is the derived unit.
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| 26. | The steradian was formerly an SI supplementary unit, but this category was abolished in 1995 and the steradian is now considered an SI derived unit.
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| 27. | Radon concentration is usually measured in the atmosphere in becquerels per cubic meter ( Bq / m 3 ), which is an SI derived unit.
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| 28. | I've noticed that there are several derived units have special names ( like the new 12 : 05, 23 August 2012 ( UTC)
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| 29. | Should the meter's definition change such that it is shorter by a factor of, then the bar would be a coherent derived unit.
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| 30. | The SI derived unit for measuring the "'catalytic activity "'of a catalyst is the katal, which is moles per second.
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