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The numerical value of a measurement should always be expressed together with the correct unit. In a problem,units are multiplied, divided, and cancelled exactly as numbers would be.
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ƯÁ÷Æ¿520(½ð±Ò+1, ·­ÒëEPI+1): 2011-03-06 17:39:52
ringzhu(½ð±Ò+1): ÐÁ¿à 2011-03-15 10:27:32
The numerical value of a measurement should always be expressed together with the correct unit. In a problem,units are multiplied, divided, and cancelled exactly as numbers would be.
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Originally posted by °®ÓëÓêÏ at 2011-03-06 16:42:04:
The numerical value of a measurement should always be expressed together with the correct unit. In a problem,units are multiplied, divided, and cancelled exactly as numbers would be.
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