Marine life is dependent upon the microscopic plant life that exists in the photic zone, a zone that goes to a depth where about 1 % of the surface light remains. In some waters with a great deal of sediment, the photic zone may go down only 15 or 20 feet. In some murky harbors, the intensity of light d feet below the surface is given by I l e 0.26d, where lo is the intensity of light at the surface. What percentage of the surface light will reach a depth of (A) 10 feet? (B) 20 feet?
Marine life is dependent upon the microscopic plant life that exists in the photic zone, a zone that goes to a depth where about 1 % of the surface light remains. In some waters with a great deal of sediment, the photic zone may go down only 15 or 20 feet. In some murky harbors, the intensity of light d feet below the surface is given by I l e 0.26d, where lo is the intensity of light at the surface. What percentage of the surface light will reach a depth of (A) 10 feet? (B) 20 feet?
Chapter6: Exponential And Logarithmic Functions
Section6.1: Exponential Functions
Problem 60SE: The formula for the amount A in an investmentaccount with a nominal interest rate r at any timet is...
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Transcribed Image Text:Marine life is dependent upon the microscopic plant life that exists in the photic zone, a zone that goes to a depth where about 1 % of the surface
light remains. In some waters with a great deal of sediment, the photic zone may go down only 15 or 20 feet. In some murky harbors, the intensity
of light d feet below the surface is given by I l e 0.26d, where lo is the intensity of light at the surface. What percentage of the surface light will
reach a depth of
(A) 10 feet?
(B) 20 feet?
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