The distance between the sun and earth is about 1.5*10^11m. express this distance with an SI prefix and in kilometer

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Physics

Carly Moore

28 August, 04:39

The distance between the sun and earth is about 1.5*10^11m. express this distance with an SI prefix and in kilometer

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Nancy Huffman · Answer 1

In scientific notation, if the exponent of 10 is positive, the number is very very large. In the metric system, very large numbers are expressed in megameters (Mm) or gigameters (Gm). Gigameters is equal to 10⁹ meters. So, in SI prefix, that would be equal to 150 Gm. In kilometers, that would be equal to:

1.5*10¹¹ m * (1 km/1000 m) = 1.5*10⁸ km