A Circular Saw Is Powered by a Motor

question 68

Multiple Choice

A circular saw is powered by a motor.When the saw is used to cut wood, the wood exerts a torque of 0.80 N∙m on the saw blade.If the blade rotates with a constant angular velocity of 20 rad/s the work done on the blade by the motor in 1.0 min is:

• A)0 J
• B)480 J
• C)960 J
• D)1500 J
• E)1800 J

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Definitions:

The Unconscious

A part of the mind that houses memories, desires, and feelings that are not within conscious awareness.

Childhood Experiences

Events, interactions, and relationships during early years of life that significantly influence one's development and personality.

Individual Psychology

A psychological theory and therapy approach focusing on the uniqueness of each person and the importance of social context in personality development, introduced by Alfred Adler.

Depth Psychology

A branch of psychology that focuses on the unconscious mind, and how deep-seated thoughts and feelings can influence behavior and personality.