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21 January, 12:29

The speed of light is now defined to be 2.99792458 * 108 m/s. Express the speed of light to (a) three significant figures, (b) five significant figures, and (c) seven significant figures.

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  1. 21 January, 13:18
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    The rules of significant figures includes non-zeros are considered significant. In this case, if the speed of light is expressed in three significant figures, the answer is 3.00 x 108 m/s.; if five significant figures, the answer is 2.9979 x108 m/s; if seven sig figs, then 2.997925 x 108 m/s
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