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If F12 is the magnitude of the gravitational force acting between masses M , and M2 separated by distance D12 , then the force equals the The product of ...
Portable gravimeters , which can detect variations of a part in 10 ° in the gravitational force , are today in wide use for mineral and oil prospecting ...
The standard of force , in turn , is a necessary quantity in the assignment of values to the electrical units of current and voltage .
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review