Answer
See below
Work Step by Step
$s(h)=2\ln(100h)$
$s(2h)=2\ln(200h)=2\ln(2(100h))=2\ln 2+2\ln (100h)$
The change in wind speed is $s(2h)-s(h)=2\ln 2=\ln 4$
The increase in wind speed is $\ln 4$
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