On a Cloudy Day with D Hours of Daylight, the Intensity

question 138

Multiple Choice

On a cloudy day with D hours of daylight, the intensity of sunlight I (in calories/cm ² ) may be approximated by where t = 0 corresponds to sunrise and I _m is the maximum intensity. If D = 12, approximately how many hours after sunrise is ? Round your answer to two decimal places.

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Definitions:

Molecule

The smallest unit of a chemical substance that retains its chemical properties, consisting of two or more atoms bonded together.

Compound

A substance made up of two or more elements chemically combined in fixed proportions.

Sodium Chloride

A chemical compound known as table salt, composed of sodium and chlorine atoms, essential for human health but required in moderation.

Molecule

The smallest unit of a chemical compound that can exist, consisting of two or more atoms bonded together.