A Bucket Filled with Water Has a Mass of 20

question 6

Multiple Choice

A bucket filled with water has a mass of 20.0 kg and is attached to a rope,which in turn,is wound around a 0.050-m radius cylinder at the top of a well.What torque does the weight of water and bucket produce on the cylinder if the cylinder is not permitted to rotate? (g = 9.80 m/s²)

• A)19.6 N·m
• B)9.8 N·m
• C)1.00 N·m
• D)400 N·m
• E)196 N·m

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Definitions:

Absolute Threshold

The minimum intensity of a stimulus that can be detected by a person's senses at least 50% of the time.

Difference Threshold

The smallest amount by which a stimulus can be changed and the difference be detected half the time, also known as the just noticeable difference.

Weber's Law

A principle stating that the smallest noticeable difference in stimulus intensity is proportional to the intensity of the initial stimulus.

Chronic Obstructive Pulmonary Disease (COPD)

A group of lung diseases characterized by increasing breathlessness, frequent coughing, and sputum production.