Solve. -In the Formula a = Iekt, a Is the Amount

question 172

Multiple Choice

Solve.
-In the formula A = Iekt, A is the amount of radioactive material remaining from an initial amount I at a given time t and k is a negative constant determined by the nature of the material. An artifact is discovered at a certain
Site. If it has 55% of the carbon-14 it originally contained, what is the approximate age of the artifact?
(carbon-14 decays at the rate of 0.0125% annually.) (Round to the nearest year.)

• A) 4783 yr
• B) 2077 yr
• C) 4400 yr
• D) 3600 yr

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Definitions:

Metabolic Pathways

Networks of chemical reactions within cells that convert substances into other products, crucial for maintaining life's processes.

Photosynthesis

The process by which green plants, algae, and some bacteria transform light energy into chemical energy, converting carbon dioxide and water into glucose and releasing oxygen as a byproduct.

Cellular Respiration

The process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

Heat

A form of energy associated with the movement of atoms and molecules, transferable between objects or systems resulting in temperature changes.