some useful numbers
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Useful numbers from the world you live in. Numbers. Number of people on the earth. ~8 billion (8 x 10 9) Number of people in the USA. ~ 300 million (3 x 10 8) Number of people in the state of Maryland. ~ 5 million (5 x 10 6) Number of students in a large state university. Some-Useful-Numbers - StuDocuSome Useful Numbers on the Engineering Properties of Materials (Geologic and Otherwise) GEOL 615. Coefficient of sliding friction ( ) For most rocks, varies between 0.8 and 0.5. A value of 0.60 would be a good number for. general use. Glass on glass 0.4. Rubber on concrete 0.75. Steel on steel 0.55.
Some Useful Numbers. Chapter. 832 Downloads. One number type to which the modern world seems addicted is that of the percentage. There are good reasons for this however. We constantly need to refer to things such as growth, or to a certain proportion of the population, but at the same time we do not much like fractionseven talking in terms