A Boy Throws a Ball to Another Boy Who Throws

question 17

Multiple Choice

A boy throws a ball to another boy who throws it back with half the original speed. What is the ratio of the final kinetic energy to the initial kinetic energy of the ball?

• A) 0.25
• B) 0.50
• C) 2.00
• D) 0.75
• E) 1.0

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Definitions:

Mindfulness Meditation

A practice of focusing one’s attention on the present moment, while calmly acknowledging and accepting one's feelings, thoughts, and bodily sensations.

Type A Personality

A personality type characterized by high levels of competitiveness, self-drive, impatience, and a strong sense of urgency.

External Locus

The belief that one’s life events are primarily controlled by external forces or influences rather than one’s own efforts.

Oxytocin Levels

Concentrations of oxytocin, a hormone involved in social bonding, sexual reproduction, and childbirth, in an individual's body.