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OpenStudy (zaxoanl):
Can anyone explain to me how to find the answer to these 2 questions. Estimate the distance traveled by our planet around the sun in 10yrs, if the distance between the sun and earth is about 1.5*10^11m and the path is circular. Estimate the number of water molecules in a 250cm^3 glass of water. Each molecule's dimension is about 3.0*10^-10m.
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