The Initial Speed of a Cannon Ball Is 0

question 72

Multiple Choice

The initial speed of a cannon ball is 0.20 km/s. If the ball is to strike a target that is at a horizontal distance of 3.0 km from the cannon, what is the minimum time of flight for the ball?

• A) 16 s
• B) 21 s
• C) 24 s
• D) 14 s
• E) 19 s

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Definitions:

Apolipoprotein E

A protein involved in the metabolism of fats in the body, important in the development of Alzheimer's disease and cardiovascular disease.

Neuritic Plaques

Abnormal clusters of protein fragments and cellular material that form in the brains of individuals with Alzheimer's disease and other neurodegenerative conditions.

Neurofibrillary Tangles

Abnormal accumulations of tau protein inside nerve cells, commonly associated with Alzheimer’s disease and other neurodegenerative disorders.

Lorazepam

A medication primarily used to treat anxiety disorders, acting as a sedative and calming agent by affecting the brain and nerves.