kennedywilliams kennedywilliams

11-03-2015
Mathematics

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You have a 10kg bag of sand. The mass of a grain of sand is about 10 to the -3 power gram. About how many grains of sand are in the bag of sand

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11-03-2015

N = 10^3 / 10^-3 = 10^6 = 1 million

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