A Circular Saw Is Powered by a Motor

question 42

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
• B) 480 J
• C) 960 J
• D) 1400 J
• E) 1800 J

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Definitions:

Centrally Planned Economy

An economic system where the government makes all decisions on the production and distribution of goods and services.

Government Sets Prices

A practice where the government actively intervenes to control and set the prices of certain goods and services, often to stabilize the economy or protect consumers.

Consumers

Individuals or groups who purchase goods and services for personal use or consumption.

Society Interest

The collective welfare and interests pursued by a community or society, often reflecting common goals or concerns such as public safety, education, and economic prosperity.