A Wooden Ball Is Tied to the Bottom of a Swimming

question 80

Multiple Choice

A wooden ball is tied to the bottom of a swimming pool by a string. What is the tension in the string if the ball's diameter is 0.15 m and its mass is 144 g? The water in the pool is fresh water, density 1,000 kg/m³.

• A) 15.9 N
• B) 12.7 N
• C) 14.1 N
• D) 1.78 N

---

Definitions:

Mate for Copulation

The selection of a partner for the purpose of sexual reproduction.

Aggression

A range of behaviors that can be physical or verbal, intended to harm or intimidate others.

Reinforced

Strengthened or emphasized, often in the context of behavior strengthened by a consequence in psychological terms.

Classical Conditioning

An instructional process in which two stimuli are regularly paired together; the response, which is at first produced by the second stimulus, is eventually produced by the first stimulus on its own.