Skeletal Remains of the So-Called "Pittsburgh Man", Unearthed in Pennsylvania

question 21

Short Answer

Skeletal remains of the so-called "Pittsburgh Man", unearthed in Pennsylvania, had lost 86% of the carbon 14 they originally contained. Determine the approximate age of the bones. Round your answer to the nearest year. Hint: the decay constant k for carbon 14 is equal to 0.00012.
__________ years

Understand the application of behavioral principles to real-life situations, such as sleep and child discipline.

Comprehend how stimulus generalization applies in operant conditioning.

Learn about extinction processes in both classical and operant conditioning and how behavior is affected.

Identify the similarities and differences between positive reinforcement and negative reinforcement.

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Definitions:

Brightness

The perception of light intensity, often described in terms of the amount of light emitted or reflected by an object.

Colour

The characteristic of visual perception described through categories with names such as red, blue, yellow, etc., primarily caused by the spectrum of light interacting with the photoreceptor cells of the eye.

Saturation

The intensity or purity of a color, indicating the absence of white light.

Iris

The colored part of the eye surrounding the pupil, responsible for controlling the diameter and size of the pupil and thus the amount of light reaching the retina.