A ray of light passes from air into a block of glass with a refractive index of 1.59 as shown in the figure. Note: The drawing is not to scale. 
What is the value of the distance D?
Definitions:
Play
Engaging in activities for enjoyment and recreation rather than a serious or practical purpose, especially characteristic of children.
Gender Differences
The distinctions in characteristics, behavior, and roles traditionally associated with being male or female, influenced by social, cultural, and psychological factors.
Aggression
Behavior intended to harm or intimidate others.
Overt Aggression
Visible or outwardly expressions of hostility or aggression towards others, which can include verbal or physical actions.
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