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Meaning of Multiplication and Division in Physics
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[QUOTE="gleem, post: 5459163, member: 298988"] I guess I should added where permitted or sensible for adding temperatures is usually of dubious value as is adding densities and you know even adding masses together can be of dubious value unless there is a relationship or unifying connection between them, the same for example, resistance or battery voltages. The OP questioned the meaning of multiplication in scientific applications. My post was to point out that I see multiplication basically has the same meaning as counting equal size groups where the groups size is precounted (summed) and usually interpreted as a rate or ratio. An note if the group size varies then this counting processes can be appreciated as a primitive form of integration. Multiplication begets division as addition begets subtraction. I think when you look at a ratio as an indicated division and not stemming from a sum of things in a group you what is happening. A moving object for example put the number of miles traveled in a group with defined characteristic e.g.. one hour intervals. I guess I just been concentrating too much on my odometer counting of the miles while my watch is counting off the hours. [/QUOTE]
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