Question 93094
P=86.3inH-680 where P is the percent of moisture as snow at an altitude of H feet. At what altitude is 50% of the moisture snow?
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50 = 86.3H - 680
50+680 = 86.3H
H = 8.45 feet
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Comment:  This doesn't sound right but
that is what your formula implies.
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Cheers,
Stan H.