A Mechanic Is Examining the Wheel of a Bicycle to Adjust

question 72

Multiple Choice

A mechanic is examining the wheel of a bicycle to adjust the brake. With the bicycle off the ground, he manually rotates the wheel until it reaches an angular speed of 12.0 rad/s and then allows it to coast to a stop. If the wheel has a moment of inertia of $0.100 \mathrm {~kg} \cdot \mathrm { m } ^ { 2 }$ and the wheel slows uniformly to a stop in 160 s, what is the magnitude of the retarding torque?

• A) \(1,33 \mathrm {~N} \cdot \mathrm { m }\)
• B) \(1.67 \mathrm {~N} \cdot \mathrm { m }\)
• C) \(0.00750 \mathrm {~N} \cdot \mathrm { m }\)
• D) \(0.0787 \mathrm {~N} \cdot \mathrm { m }\)
• E) \(1.00 \mathrm {~N} \cdot \mathrm { m }\)

Comprehend the concept of opportunity cost and its relevance in decision-making.

Identify the reasons opportunity costs arise due to the scarcity of resources.

Calculate the opportunity cost of attending college considering various financial aspects.

Understand the concept of marginal cost in different contexts.

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Definitions:

Pervasiveness

The quality of being widespread or prevalent, often referring to ideas, behaviors, or technological influences that extend through all parts of society.

Value-Based Management

A management approach that ensures corporations are run consistently on value-based principles to maximize shareholder value over time.

Relevance

The degree to which something is related or useful to the matter at hand.

Value-Based Management

A management approach focusing on creating value for shareholders and maximizing company performance.