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January 25, 2015

January 25, 2015

Posted by **Kellie** on Thursday, February 28, 2013 at 11:25am.

- Physical Science -
**drwls**, Thursday, February 28, 2013 at 11:54amHalving the distance will increase the intensity (power per area) by a factor of four.

Doubling the power while keeping the distance the same will only double the intensity.

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